Revert "Add casper tests for default language setting."
Revert "Add casper tests for default language setting."

This reverts commit e4b32905bf61f35b20ab13289ab85f4548d2a6cd.

This new test was failing in Travis CI.

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