events.py: Remove realm_domain from fetch_initial_state_data.
events.py: Remove realm_domain from fetch_initial_state_data.

Seems unused. git grep from realm_domain returns nothing of relevance.

aakash-cr7/zulip,dattatreya303/zulip,Galexrt/zulip,PhilSk/zulip,rishig/zulip,brockwhittaker/zulip,SmartPeople/zulip,rishig/zulip,Galexrt/zulip,jackrzhang/zulip,shubhamdhama/zulip,susansls/zulip,jphilipsen05/zulip,jackrzhang/zulip,synicalsyntax/zulip,tommyip/zulip,PhilSk/zulip,JPJPJPOPOP/zulip,hackerkid/zulip,synicalsyntax/zulip,vabs22/zulip,vabs22/zulip,rht/zulip,rht/zulip,tommyip/zulip,timabbott/zulip,mahim97/zulip,vabs22/zulip,eeshangarg/zulip,eeshangarg/zulip,dattatreya303/zulip,tommyip/zulip,jphilipsen05/zulip,dhcrzf/zulip,vaidap/zulip,eeshangarg/zulip,christi3k/zulip,amanharitsh123/zulip,showell/zulip,jainayush975/zulip,shubhamdhama/zulip,dawran6/zulip,showell/zulip,mahim97/zulip,dhcrzf/zulip,zulip/zulip,timabbott/zulip,SmartPeople/zulip,vaidap/zulip,tommyip/zulip,j831/zulip,christi3k/zulip,shubhamdhama/zulip,amanharitsh123/zulip,dattatreya303/zulip,PhilSk/zulip,dhcrzf/zulip,andersk/zulip,jackrzhang/zulip,jrowan/zulip,andersk/zulip,rishig/zulip,mahim97/zulip,tommyip/zulip,timabbott/zulip,eeshangarg/zulip,brainwane/zulip,dawran6/zulip,timabbott/zulip,aakash-cr7/zulip,susansls/zulip,shubhamdhama/zulip,jackrzhang/zulip,tommyip/zulip,dhcrzf/zulip,punchagan/zulip,PhilSk/zulip,shubhamdhama/zulip,j831/zulip,kou/zulip,punchagan/zulip,synicalsyntax/zulip,ryanbackman/zulip,kou/zulip,SmartPeople/zulip,amanharitsh123/zulip,hackerkid/zulip,jphilipsen05/zulip,vabs22/zulip,rishig/zulip,Galexrt/zulip,rht/zulip,kou/zulip,susansls/zulip,vaidap/zulip,jackrzhang/zulip,kou/zulip,j831/zulip,mahim97/zulip,christi3k/zulip,jainayush975/zulip,ryanbackman/zulip,rishig/zulip,mahim97/zulip,showell/zulip,synicalsyntax/zulip,verma-varsha/zulip,dattatreya303/zulip,tommyip/zulip,punchagan/zulip,kou/zulip,jainayush975/zulip,dawran6/zulip,jphilipsen05/zulip,punchagan/zulip,brainwane/zulip,synicalsyntax/zulip,PhilSk/zulip,SmartPeople/zulip,aakash-cr7/zulip,showell/zulip,shubhamdhama/zulip,vabs22/zulip,timabbott/zulip,ryanbackman/zulip,brainwane/zulip,souravbadami/zulip,ryanbackman/zulip,aakash-cr7/zulip,PhilSk/zulip,verma-varsha/zulip,souravbadami/zulip,zulip/zulip,Galexrt/zulip,JPJPJPOPOP/zulip,zulip/zulip,rishig/zulip,j831/zulip,souravbadami/zulip,jrowan/zulip,punchagan/zulip,verma-varsha/zulip,hackerkid/zulip,jrowan/zulip,dawran6/zulip,brainwane/zulip,souravbadami/zulip,amanharitsh123/zulip,SmartPeople/zulip,SmartPeople/zulip,hackerkid/zulip,christi3k/zulip,aakash-cr7/zulip,amanharitsh123/zulip,showell/zulip,timabbott/zulip,eeshangarg/zulip,brockwhittaker/zulip,punchagan/zulip,andersk/zulip,JPJPJPOPOP/zulip,dhcrzf/zulip,christi3k/zulip,dhcrzf/zulip,brockwhittaker/zulip,verma-varsha/zulip,aakash-cr7/zulip,zulip/zulip,eeshangarg/zulip,zulip/zulip,andersk/zulip,jphilipsen05/zulip,souravbadami/zulip,brainwane/zulip,hackerkid/zulip,ryanbackman/zulip,dhcrzf/zulip,zulip/zulip,dattatreya303/zulip,brockwhittaker/zulip,jrowan/zulip,synicalsyntax/zulip,dawran6/zulip,susansls/zulip,andersk/zulip,jainayush975/zulip,brainwane/zulip,andersk/zulip,rht/zulip,j831/zulip,jphilipsen05/zulip,JPJPJPOPOP/zulip,timabbott/zulip,susansls/zulip,susansls/zulip,jrowan/zulip,vaidap/zulip,showell/zulip,JPJPJPOPOP/zulip,kou/zulip,ryanbackman/zulip,kou/zulip,souravbadami/zulip,verma-varsha/zulip,dattatreya303/zulip,Galexrt/zulip,synicalsyntax/zulip,jrowan/zulip,hackerkid/zulip,hackerkid/zulip,andersk/zulip,eeshangarg/zulip,dawran6/zulip,jainayush975/zulip,mahim97/zulip,showell/zulip,Galexrt/zulip,jackrzhang/zulip,JPJPJPOPOP/zulip,rht/zulip,brainwane/zulip,brockwhittaker/zulip,amanharitsh123/zulip,brockwhittaker/zulip,christi3k/zulip,vaidap/zulip,vabs22/zulip,j831/zulip,rishig/zulip,jackrzhang/zulip,shubhamdhama/zulip,rht/zulip,punchagan/zulip,zulip/zulip,Galexrt/zulip,jainayush975/zulip,verma-varsha/zulip,rht/zulip,vaidap/zulip