settings: Remove ZULIP_COM_STAGING setting.
settings: Remove ZULIP_COM_STAGING setting.

This setting is no longer used outside the local_settings.py file for
zulip.com.

PhilSk/zulip,blaze225/zulip,Diptanshu8/zulip,dhcrzf/zulip,dawran6/zulip,sonali0901/zulip,punchagan/zulip,Diptanshu8/zulip,dawran6/zulip,j831/zulip,zacps/zulip,amyliu345/zulip,Juanvulcano/zulip,SmartPeople/zulip,JPJPJPOPOP/zulip,dhcrzf/zulip,mohsenSy/zulip,niftynei/zulip,AZtheAsian/zulip,aakash-cr7/zulip,JPJPJPOPOP/zulip,zacps/zulip,brainwane/zulip,vikas-parashar/zulip,amyliu345/zulip,rishig/zulip,aakash-cr7/zulip,synicalsyntax/zulip,jainayush975/zulip,brainwane/zulip,mohsenSy/zulip,souravbadami/zulip,hackerkid/zulip,verma-varsha/zulip,zulip/zulip,susansls/zulip,arpith/zulip,reyha/zulip,susansls/zulip,Jianchun1/zulip,hackerkid/zulip,jphilipsen05/zulip,SmartPeople/zulip,susansls/zulip,grave-w-grave/zulip,ryanbackman/zulip,shubhamdhama/zulip,Juanvulcano/zulip,showell/zulip,showell/zulip,ryanbackman/zulip,Jianchun1/zulip,krtkmj/zulip,jrowan/zulip,Jianchun1/zulip,dattatreya303/zulip,Galexrt/zulip,calvinleenyc/zulip,jackrzhang/zulip,niftynei/zulip,andersk/zulip,amanharitsh123/zulip,amanharitsh123/zulip,eeshangarg/zulip,KingxBanana/zulip,rishig/zulip,mahim97/zulip,j831/zulip,punchagan/zulip,reyha/zulip,KingxBanana/zulip,JPJPJPOPOP/zulip,Juanvulcano/zulip,sup95/zulip,Juanvulcano/zulip,aakash-cr7/zulip,cosmicAsymmetry/zulip,jainayush975/zulip,SmartPeople/zulip,vabs22/zulip,jrowan/zulip,dawran6/zulip,vabs22/zulip,paxapy/zulip,vabs22/zulip,KingxBanana/zulip,Galexrt/zulip,Diptanshu8/zulip,grave-w-grave/zulip,zacps/zulip,vabs22/zulip,paxapy/zulip,timabbott/zulip,verma-varsha/zulip,cosmicAsymmetry/zulip,umkay/zulip,JPJPJPOPOP/zulip,mohsenSy/zulip,amanharitsh123/zulip,showell/zulip,samatdav/zulip,KingxBanana/zulip,calvinleenyc/zulip,dhcrzf/zulip,Diptanshu8/zulip,punchagan/zulip,TigorC/zulip,tommyip/zulip,TigorC/zulip,sharmaeklavya2/zulip,j831/zulip,rht/zulip,brainwane/zulip,reyha/zulip,j831/zulip,dhcrzf/zulip,dattatreya303/zulip,rishig/zulip,rht/zulip,dhcrzf/zulip,Galexrt/zulip,ahmadassaf/zulip,ahmadassaf/zulip,sup95/zulip,AZtheAsian/zulip,Jianchun1/zulip,JPJPJPOPOP/zulip,j831/zulip,Juanvulcano/zulip,jrowan/zulip,rht/zulip,aakash-cr7/zulip,jackrzhang/zulip,vikas-parashar/zulip,Diptanshu8/zulip,arpith/zulip,jphilipsen05/zulip,jackrzhang/zulip,cosmicAsymmetry/zulip,andersk/zulip,vikas-parashar/zulip,jrowan/zulip,joyhchen/zulip,eeshangarg/zulip,zulip/zulip,jackrzhang/zulip,mohsenSy/zulip,AZtheAsian/zulip,reyha/zulip,joyhchen/zulip,umkay/zulip,susansls/zulip,zulip/zulip,mahim97/zulip,vikas-parashar/zulip,ahmadassaf/zulip,shubhamdhama/zulip,jrowan/zulip,PhilSk/zulip,sup95/zulip,jackrzhang/zulip,punchagan/zulip,showell/zulip,sonali0901/zulip,isht3/zulip,Galexrt/zulip,verma-varsha/zulip,dawran6/zulip,calvinleenyc/zulip,vaidap/zulip,samatdav/zulip,mahim97/zulip,brainwane/zulip,zacps/zulip,mahim97/zulip,jainayush975/zulip,hackerkid/zulip,jphilipsen05/zulip,vaidap/zulip,SmartPeople/zulip,ahmadassaf/zulip,ahmadassaf/zulip,synicalsyntax/zulip,TigorC/zulip,eeshangarg/zulip,sup95/zulip,tommyip/zulip,Galexrt/zulip,souravbadami/zulip,eeshangarg/zulip,peguin40/zulip,jackrzhang/zulip,grave-w-grave/zulip,vaidap/zulip,dattatreya303/zulip,hackerkid/zulip,zacps/zulip,shubhamdhama/zulip,verma-varsha/zulip,rishig/zulip,grave-w-grave/zulip,brockwhittaker/zulip,brockwhittaker/zulip,jainayush975/zulip,samatdav/zulip,peguin40/zulip,rishig/zulip,joyhchen/zulip,andersk/zulip,blaze225/zulip,synicalsyntax/zulip,synicalsyntax/zulip,timabbott/zulip,zulip/zulip,shubhamdhama/zulip,paxapy/zulip,ahmadassaf/zulip,dhcrzf/zulip,krtkmj/zulip,krtkmj/zulip,zulip/zulip,sonali0901/zulip,jainayush975/zulip,timabbott/zulip,brainwane/zulip,hackerkid/zulip,joyhchen/zulip,eeshangarg/zulip,rht/zulip,brockwhittaker/zulip,umkay/zulip,PhilSk/zulip,showell/zulip,dattatreya303/zulip,synicalsyntax/zulip,timabbott/zulip,tommyip/zulip,krtkmj/zulip,brainwane/zulip,mahim97/zulip,TigorC/zulip,jphilipsen05/zulip,isht3/zulip,dawran6/zulip,kou/zulip,PhilSk/zulip,PhilSk/zulip,peguin40/zulip,mohsenSy/zulip,amyliu345/zulip,sharmaeklavya2/zulip,Jianchun1/zulip,blaze225/zulip,Galexrt/zulip,blaze225/zulip,shubhamdhama/zulip,kou/zulip,vikas-parashar/zulip,eeshangarg/zulip,vabs22/zulip,christi3k/zulip,Galexrt/zulip,sharmaeklavya2/zulip,samatdav/zulip,grave-w-grave/zulip,shubhamdhama/zulip,niftynei/zulip,krtkmj/zulip,vaidap/zulip,paxapy/zulip,amyliu345/zulip,rht/zulip,j831/zulip,andersk/zulip,tommyip/zulip,zacps/zulip,verma-varsha/zulip,zulip/zulip,dattatreya303/zulip,TigorC/zulip,calvinleenyc/zulip,amanharitsh123/zulip,ryanbackman/zulip,timabbott/zulip,niftynei/zulip,KingxBanana/zulip,kou/zulip,ryanbackman/zulip,dawran6/zulip,christi3k/zulip,timabbott/zulip,jackrzhang/zulip,punchagan/zulip,krtkmj/zulip,brockwhittaker/zulip,joyhchen/zulip,mohsenSy/zulip,cosmicAsymmetry/zulip,dhcrzf/zulip,showell/zulip,mahim97/zulip,Diptanshu8/zulip,AZtheAsian/zulip,tommyip/zulip,AZtheAsian/zulip,niftynei/zulip,calvinleenyc/zulip,vabs22/zulip,JPJPJPOPOP/zulip,cosmicAsymmetry/zulip,zulip/zulip,shubhamdhama/zulip,kou/zulip,niftynei/zulip,samatdav/zulip,susansls/zulip,jainayush975/zulip,tommyip/zulip,punchagan/zulip,TigorC/zulip,joyhchen/zulip,amanharitsh123/zulip,jphilipsen05/zulip,synicalsyntax/zulip,AZtheAsian/zulip,amanharitsh123/zulip,andersk/zulip,tommyip/zulip,vaidap/zulip,calvinleenyc/zulip,cosmicAsymmetry/zulip,Jianchun1/zulip,aakash-cr7/zulip,isht3/zulip,andersk/zulip,blaze225/zulip,souravbadami/zulip,dattatreya303/zulip,sonali0901/zulip,sharmaeklavya2/zulip,arpith/zulip,isht3/zulip,umkay/zulip,paxapy/zulip,vaidap/zulip,souravbadami/zulip,susansls/zulip,christi3k/zulip,christi3k/zulip,andersk/zulip,paxapy/zulip,ahmadassaf/zulip,peguin40/zulip,SmartPeople/zulip,eeshangarg/zulip,hackerkid/zulip,blaze225/zulip,sonali0901/zulip,isht3/zulip,jphilipsen05/zulip,krtkmj/zulip,rishig/zulip,aakash-cr7/zulip,arpith/zulip,sup95/zulip,kou/zulip,arpith/zulip,reyha/zulip,souravbadami/zulip,sharmaeklavya2/zulip,peguin40/zulip,kou/zulip,sonali0901/zulip,amyliu345/zulip,punchagan/zulip,rht/zulip,brockwhittaker/zulip,souravbadami/zulip,rishig/zulip,ryanbackman/zulip,peguin40/zulip,hackerkid/zulip,jrowan/zulip,kou/zulip,christi3k/zulip,arpith/zulip,umkay/zulip,christi3k/zulip,reyha/zulip,verma-varsha/zulip,isht3/zulip,brainwane/zulip,amyliu345/zulip,vikas-parashar/zulip,umkay/zulip,PhilSk/zulip,brockwhittaker/zulip,Juanvulcano/zulip,synicalsyntax/zulip,samatdav/zulip,showell/zulip,SmartPeople/zulip,grave-w-grave/zulip,sharmaeklavya2/zulip,timabbott/zulip,ryanbackman/zulip,umkay/zulip,sup95/zulip,KingxBanana/zulip,rht/zulip