Remove WorkspaceElement::handleWindowFocus
Remove WorkspaceElement::handleWindowFocus

We were getting stack traces in specs when the window got focused caused
by this subscription never getting disposed. We investigated, and can’t
find a case where removing this causes any issues.

Tested:
* Loading/reloading empty window
* Loading/reloading window with pane splits
* Opening/closing dev tools
* Switching focus between atom windows
* Switching focus between applications

Signed-off-by: Max Brunsfeld <78036c9b69b887700d5846f26a788d53b201ffbb@gmail.com>

Jandersolutions/atom,kjav/atom,rmartin/atom,ilovezy/atom,hpham04/atom,darwin/atom,anuwat121/atom,gisenberg/atom,NunoEdgarGub1/atom,kjav/atom,vinodpanicker/atom,Andrey-Pavlov/atom,cyzn/atom,harshdattani/atom,jtrose2/atom,sotayamashita/atom,johnrizzo1/atom,crazyquark/atom,alexandergmann/atom,splodingsocks/atom,jlord/atom,basarat/atom,dijs/atom,AlbertoBarrago/atom,brumm/atom,tmunro/atom,hpham04/atom,Andrey-Pavlov/atom,hellendag/atom,pombredanne/atom,prembasumatary/atom,Rodjana/atom,dannyflax/atom,Austen-G/BlockBuilder,jtrose2/atom,Neron-X5/atom,chfritz/atom,toqz/atom,prembasumatary/atom,KENJU/atom,synaptek/atom,constanzaurzua/atom,florianb/atom,hagb4rd/atom,KENJU/atom,alexandergmann/atom,Hasimir/atom,helber/atom,pombredanne/atom,fredericksilva/atom,vjeux/atom,Neron-X5/atom,pkdevbox/atom,ali/atom,ralphtheninja/atom,isghe/atom,fedorov/atom,constanzaurzua/atom,bencolon/atom,YunchengLiao/atom,kandros/atom,vcarrera/atom,avdg/atom,codex8/atom,jlord/atom,0x73/atom,qskycolor/atom,nrodriguez13/atom,Andrey-Pavlov/atom,hagb4rd/atom,vhutheesing/atom,Hasimir/atom,ezeoleaf/atom,qiujuer/atom,daxlab/atom,Shekharrajak/atom,dsandstrom/atom,decaffeinate-examples/atom,cyzn/atom,kdheepak89/atom,sillvan/atom,jeremyramin/atom,001szymon/atom,Austen-G/BlockBuilder,bcoe/atom,tony612/atom,russlescai/atom,woss/atom,dkfiresky/atom,FoldingText/atom,batjko/atom,bsmr-x-script/atom,rjattrill/atom,devmario/atom,omarhuanca/atom,hakatashi/atom,targeter21/atom,sekcheong/atom,Galactix/atom,h0dgep0dge/atom,Mokolea/atom,xream/atom,mertkahyaoglu/atom,daxlab/atom,chfritz/atom,Ju2ender/atom,lisonma/atom,yalexx/atom,sebmck/atom,rjattrill/atom,kjav/atom,helber/atom,basarat/atom,targeter21/atom,kaicataldo/atom,jjz/atom,synaptek/atom,ppamorim/atom,champagnez/atom,ReddTea/atom,0x73/atom,fredericksilva/atom,mertkahyaoglu/atom,sxgao3001/atom,elkingtonmcb/atom,lovesnow/atom,Jandersoft/atom,qskycolor/atom,sxgao3001/atom,vinodpanicker/atom,florianb/atom,deoxilix/atom,ykeisuke/atom,ivoadf/atom,fredericksilva/atom,ReddTea/atom,acontreras89/atom,oggy/atom,DiogoXRP/atom,folpindo/atom,vinodpanicker/atom,gontadu/atom,liuxiong332/atom,gabrielPeart/atom,Abdillah/atom,RobinTec/atom,abcP9110/atom,kaicataldo/atom,hellendag/atom,einarmagnus/atom,jacekkopecky/atom,RuiDGoncalves/atom,sekcheong/atom,DiogoXRP/atom,sekcheong/atom,scv119/atom,tjkr/atom,gzzhanghao/atom,davideg/atom,deepfox/atom,FIT-CSE2410-A-Bombs/atom,ilovezy/atom,johnhaley81/atom,niklabh/atom,devoncarew/atom,h0dgep0dge/atom,mnquintana/atom,lisonma/atom,dijs/atom,splodingsocks/atom,panuchart/atom,tony612/atom,vcarrera/atom,chengky/atom,Sangaroonaom/atom,matthewclendening/atom,me-benni/atom,mdumrauf/atom,n-riesco/atom,AdrianVovk/substance-ide,Rodjana/atom,Shekharrajak/atom,vjeux/atom,tisu2tisu/atom,scippio/atom,xream/atom,NunoEdgarGub1/atom,FoldingText/atom,qiujuer/atom,florianb/atom,liuxiong332/atom,Mokolea/atom,n-riesco/atom,devmario/atom,sebmck/atom,oggy/atom,BogusCurry/atom,sekcheong/atom,yalexx/atom,vjeux/atom,targeter21/atom,folpindo/atom,pengshp/atom,crazyquark/atom,niklabh/atom,KENJU/atom,mdumrauf/atom,mrodalgaard/atom,johnrizzo1/atom,Sangaroonaom/atom,liuderchi/atom,chengky/atom,RobinTec/atom,rjattrill/atom,tony612/atom,ykeisuke/atom,Ju2ender/atom,tanin47/atom,GHackAnonymous/atom,RobinTec/atom,GHackAnonymous/atom,kittens/atom,amine7536/atom,Galactix/atom,wiggzz/atom,Jandersoft/atom,basarat/atom,ObviouslyGreen/atom,Huaraz2/atom,alfredxing/atom,efatsi/atom,Shekharrajak/atom,stuartquin/atom,vhutheesing/atom,fscherwi/atom,YunchengLiao/atom,h0dgep0dge/atom,panuchart/atom,dsandstrom/atom,qiujuer/atom,rmartin/atom,Jandersoft/atom,lovesnow/atom,qskycolor/atom,decaffeinate-examples/atom,pengshp/atom,G-Baby/atom,tisu2tisu/atom,florianb/atom,jacekkopecky/atom,hharchani/atom,palita01/atom,Rychard/atom,mostafaeweda/atom,FoldingText/atom,sxgao3001/atom,tony612/atom,alexandergmann/atom,NunoEdgarGub1/atom,RobinTec/atom,ilovezy/atom,isghe/atom,dkfiresky/atom,alfredxing/atom,hharchani/atom,yamhon/atom,001szymon/atom,MjAbuz/atom,dannyflax/atom,davideg/atom,avdg/atom,dannyflax/atom,woss/atom,crazyquark/atom,dsandstrom/atom,devoncarew/atom,n-riesco/atom,jordanbtucker/atom,qskycolor/atom,scv119/atom,Huaraz2/atom,einarmagnus/atom,kc8wxm/atom,RobinTec/atom,jtrose2/atom,targeter21/atom,constanzaurzua/atom,rsvip/aTom,SlimeQ/atom,bolinfest/atom,Austen-G/BlockBuilder,ppamorim/atom,PKRoma/atom,oggy/atom,matthewclendening/atom,kjav/atom,MjAbuz/atom,kjav/atom,Abdillah/atom,originye/atom,lpommers/atom,alfredxing/atom,dkfiresky/atom,AlexxNica/atom,Rychard/atom,Neron-X5/atom,AlexxNica/atom,folpindo/atom,einarmagnus/atom,g2p/atom,codex8/atom,ezeoleaf/atom,lovesnow/atom,devoncarew/atom,G-Baby/atom,harshdattani/atom,sebmck/atom,rxkit/atom,me6iaton/atom,ashneo76/atom,beni55/atom,yomybaby/atom,Andrey-Pavlov/atom,fscherwi/atom,yalexx/atom,avdg/atom,ezeoleaf/atom,phord/atom,jtrose2/atom,BogusCurry/atom,ralphtheninja/atom,ironbox360/atom,liuxiong332/atom,AdrianVovk/substance-ide,stuartquin/atom,ironbox360/atom,kdheepak89/atom,rookie125/atom,matthewclendening/atom,CraZySacX/atom,hakatashi/atom,bj7/atom,jacekkopecky/atom,kc8wxm/atom,hpham04/atom,FoldingText/atom,pkdevbox/atom,githubteacher/atom,Arcanemagus/atom,transcranial/atom,nrodriguez13/atom,lpommers/atom,cyzn/atom,decaffeinate-examples/atom,phord/atom,t9md/atom,darwin/atom,bj7/atom,yangchenghu/atom,Ingramz/atom,davideg/atom,me-benni/atom,chengky/atom,dkfiresky/atom,jjz/atom,rxkit/atom,rlugojr/atom,ObviouslyGreen/atom,mostafaeweda/atom,jordanbtucker/atom,prembasumatary/atom,ReddTea/atom,stinsonga/atom,jacekkopecky/atom,jjz/atom,rsvip/aTom,Jonekee/atom,boomwaiza/atom,gontadu/atom,bryonwinger/atom,wiggzz/atom,rlugojr/atom,lisonma/atom,transcranial/atom,Hasimir/atom,acontreras89/atom,Shekharrajak/atom,liuderchi/atom,russlescai/atom,SlimeQ/atom,stuartquin/atom,MjAbuz/atom,johnhaley81/atom,gisenberg/atom,johnhaley81/atom,YunchengLiao/atom,bsmr-x-script/atom,g2p/atom,helber/atom,vcarrera/atom,devoncarew/atom,john-kelly/atom,jjz/atom,batjko/atom,yomybaby/atom,Locke23rus/atom,medovob/atom,kandros/atom,abcP9110/atom,vhutheesing/atom,ralphtheninja/atom,oggy/atom,kittens/atom,Austen-G/BlockBuilder,AlisaKiatkongkumthon/atom,palita01/atom,kdheepak89/atom,ppamorim/atom,hpham04/atom,Galactix/atom,FIT-CSE2410-A-Bombs/atom,me6iaton/atom,bcoe/atom,xream/atom,mnquintana/atom,PKRoma/atom,nucked/atom,boomwaiza/atom,qiujuer/atom,Jandersolutions/atom,isghe/atom,rsvip/aTom,paulcbetts/atom,mrodalgaard/atom,Klozz/atom,Dennis1978/atom,mertkahyaoglu/atom,tanin47/atom,nucked/atom,vjeux/atom,AlbertoBarrago/atom,AlbertoBarrago/atom,rsvip/aTom,medovob/atom,Sangaroonaom/atom,atom/atom,vjeux/atom,BogusCurry/atom,amine7536/atom,abcP9110/atom,hagb4rd/atom,t9md/atom,AlexxNica/atom,githubteacher/atom,lovesnow/atom,brettle/atom,GHackAnonymous/atom,ali/atom,liuxiong332/atom,dannyflax/atom,Ingramz/atom,MjAbuz/atom,prembasumatary/atom,anuwat121/atom,bcoe/atom,hakatashi/atom,davideg/atom,omarhuanca/atom,mrodalgaard/atom,ezeoleaf/atom,splodingsocks/atom,sebmck/atom,fedorov/atom,vcarrera/atom,Locke23rus/atom,bryonwinger/atom,batjko/atom,kc8wxm/atom,bcoe/atom,gisenberg/atom,pombredanne/atom,jlord/atom,ivoadf/atom,crazyquark/atom,fedorov/atom,001szymon/atom,CraZySacX/atom,yalexx/atom,kittens/atom,amine7536/atom,kittens/atom,lisonma/atom,charleswhchan/atom,charleswhchan/atom,NunoEdgarGub1/atom,Jdesk/atom,stinsonga/atom,sillvan/atom,Mokolea/atom,ardeshirj/atom,darwin/atom,SlimeQ/atom,ilovezy/atom,yamhon/atom,gabrielPeart/atom,kandros/atom,kevinrenaers/atom,kc8wxm/atom,ali/atom,Abdillah/atom,githubteacher/atom,fedorov/atom,G-Baby/atom,bsmr-x-script/atom,scippio/atom,sotayamashita/atom,Jandersolutions/atom,hakatashi/atom,me6iaton/atom,originye/atom,YunchengLiao/atom,mnquintana/atom,harshdattani/atom,Andrey-Pavlov/atom,synaptek/atom,kevinrenaers/atom,rmartin/atom,fredericksilva/atom,kittens/atom,toqz/atom,PKRoma/atom,Jandersolutions/atom,jeremyramin/atom,ilovezy/atom,kc8wxm/atom,gisenberg/atom,Shekharrajak/atom,rxkit/atom,ivoadf/atom,mertkahyaoglu/atom,burodepeper/atom,Klozz/atom,panuchart/atom,isghe/atom,Galactix/atom,Jdesk/atom,DiogoXRP/atom,abcP9110/atom,lisonma/atom,devmario/atom,FoldingText/atom,rmartin/atom,Klozz/atom,bolinfest/atom,pkdevbox/atom,Ju2ender/atom,toqz/atom,rsvip/aTom,scippio/atom,scv119/atom,andrewleverette/atom,kaicataldo/atom,me6iaton/atom,me-benni/atom,AlisaKiatkongkumthon/atom,Locke23rus/atom,atom/atom,MjAbuz/atom,nvoron23/atom,FIT-CSE2410-A-Bombs/atom,mostafaeweda/atom,chfritz/atom,g2p/atom,charleswhchan/atom,bcoe/atom,johnrizzo1/atom,hellendag/atom,yomybaby/atom,originye/atom,sebmck/atom,mostafaeweda/atom,deepfox/atom,Hasimir/atom,brettle/atom,0x73/atom,jlord/atom,svanharmelen/atom,nvoron23/atom,dsandstrom/atom,n-riesco/atom,burodepeper/atom,liuderchi/atom,sillvan/atom,transcranial/atom,andrewleverette/atom,SlimeQ/atom,efatsi/atom,KENJU/atom,svanharmelen/atom,sxgao3001/atom,decaffeinate-examples/atom,kdheepak89/atom,dijs/atom,seedtigo/atom,jtrose2/atom,woss/atom,bencolon/atom,pombredanne/atom,john-kelly/atom,fang-yufeng/atom,SlimeQ/atom,champagnez/atom,tmunro/atom,ykeisuke/atom,ironbox360/atom,matthewclendening/atom,bryonwinger/atom,niklabh/atom,nrodriguez13/atom,devmario/atom,amine7536/atom,brumm/atom,seedtigo/atom,Abdillah/atom,rlugojr/atom,phord/atom,stinsonga/atom,Austen-G/BlockBuilder,rookie125/atom,woss/atom,basarat/atom,liuxiong332/atom,bencolon/atom,pengshp/atom,h0dgep0dge/atom,fredericksilva/atom,kdheepak89/atom,Austen-G/BlockBuilder,gzzhanghao/atom,NunoEdgarGub1/atom,gabrielPeart/atom,Neron-X5/atom,tony612/atom,omarhuanca/atom,FoldingText/atom,synaptek/atom,qskycolor/atom,deoxilix/atom,codex8/atom,CraZySacX/atom,boomwaiza/atom,acontreras89/atom,crazyquark/atom,deoxilix/atom,abcP9110/atom,Neron-X5/atom,GHackAnonymous/atom,n-riesco/atom,AlisaKiatkongkumthon/atom,Jdesk/atom,sillvan/atom,wiggzz/atom,batjko/atom,einarmagnus/atom,brettle/atom,omarhuanca/atom,Dennis1978/atom,paulcbetts/atom,Abdillah/atom,GHackAnonymous/atom,mnquintana/atom,deepfox/atom,jacekkopecky/atom,oggy/atom,tjkr/atom,yalexx/atom,matthewclendening/atom,rookie125/atom,scv119/atom,russlescai/atom,hharchani/atom,hpham04/atom,Galactix/atom,fang-yufeng/atom,stinsonga/atom,elkingtonmcb/atom,john-kelly/atom,ppamorim/atom,einarmagnus/atom,lpommers/atom,Jandersoft/atom,vinodpanicker/atom,codex8/atom,jlord/atom,vcarrera/atom,devmario/atom,t9md/atom,deepfox/atom,Ju2ender/atom,dsandstrom/atom,charleswhchan/atom,Jonekee/atom,efatsi/atom,anuwat121/atom,ali/atom,rjattrill/atom,hagb4rd/atom,beni55/atom,pombredanne/atom,ardeshirj/atom,john-kelly/atom,toqz/atom,acontreras89/atom,sillvan/atom,jordanbtucker/atom,dannyflax/atom,Arcanemagus/atom,yomybaby/atom,tmunro/atom,davideg/atom,Rodjana/atom,palita01/atom,RuiDGoncalves/atom,jacekkopecky/atom,gontadu/atom,toqz/atom,gzzhanghao/atom,deepfox/atom,Jandersoft/atom,seedtigo/atom,mertkahyaoglu/atom,woss/atom,dkfiresky/atom,john-kelly/atom,russlescai/atom,mostafaeweda/atom,Jdesk/atom,tjkr/atom,Dennis1978/atom,AdrianVovk/substance-ide,Arcanemagus/atom,codex8/atom,vinodpanicker/atom,mdumrauf/atom,nvoron23/atom,Rychard/atom,acontreras89/atom,0x73/atom,Jdesk/atom,tanin47/atom,bryonwinger/atom,brumm/atom,isghe/atom,tisu2tisu/atom,liuderchi/atom,hharchani/atom,yomybaby/atom,ReddTea/atom,prembasumatary/atom,ReddTea/atom,hharchani/atom,nvoron23/atom,elkingtonmcb/atom,andrewleverette/atom,ashneo76/atom,yangchenghu/atom,Hasimir/atom,jeremyramin/atom,beni55/atom,targeter21/atom,chengky/atom,nvoron23/atom,ObviouslyGreen/atom,daxlab/atom,burodepeper/atom,atom/atom,sotayamashita/atom,Jonekee/atom,fedorov/atom,qiujuer/atom,amine7536/atom,devoncarew/atom,RuiDGoncalves/atom,dannyflax/atom,constanzaurzua/atom,kevinrenaers/atom,YunchengLiao/atom,me6iaton/atom,ashneo76/atom,sekcheong/atom,svanharmelen/atom,Jandersolutions/atom,fang-yufeng/atom,bj7/atom,splodingsocks/atom,bolinfest/atom,batjko/atom,ppamorim/atom,champagnez/atom,fang-yufeng/atom,chengky/atom,paulcbetts/atom,fscherwi/atom,ali/atom,Ju2ender/atom,paulcbetts/atom,florianb/atom,fang-yufeng/atom,nucked/atom,hagb4rd/atom,russlescai/atom,gisenberg/atom,Ingramz/atom,basarat/atom,mnquintana/atom,basarat/atom,sxgao3001/atom,KENJU/atom,medovob/atom,omarhuanca/atom,ardeshirj/atom,yangchenghu/atom,jjz/atom,rmartin/atom,synaptek/atom,Huaraz2/atom,yamhon/atom,charleswhchan/atom,constanzaurzua/atom,lovesnow/atom