events: Simplify arguments for remove_message_id_from_unread_mgs.
events: Simplify arguments for remove_message_id_from_unread_mgs.

This should make it reusable by the event_queue.py code path.

zulip/zulip,zulip/zulip,showell/zulip,rht/zulip,andersk/zulip,rht/zulip,kou/zulip,punchagan/zulip,andersk/zulip,timabbott/zulip,punchagan/zulip,hackerkid/zulip,timabbott/zulip,showell/zulip,hackerkid/zulip,punchagan/zulip,timabbott/zulip,kou/zulip,eeshangarg/zulip,eeshangarg/zulip,timabbott/zulip,tommyip/zulip,punchagan/zulip,brainwane/zulip,brainwane/zulip,punchagan/zulip,zulip/zulip,tommyip/zulip,rht/zulip,eeshangarg/zulip,eeshangarg/zulip,tommyip/zulip,showell/zulip,showell/zulip,shubhamdhama/zulip,brainwane/zulip,brainwane/zulip,shubhamdhama/zulip,brainwane/zulip,tommyip/zulip,zulip/zulip,synicalsyntax/zulip,kou/zulip,andersk/zulip,timabbott/zulip,tommyip/zulip,kou/zulip,hackerkid/zulip,punchagan/zulip,kou/zulip,tommyip/zulip,rht/zulip,synicalsyntax/zulip,zulip/zulip,andersk/zulip,eeshangarg/zulip,shubhamdhama/zulip,shubhamdhama/zulip,rht/zulip,eeshangarg/zulip,andersk/zulip,kou/zulip,synicalsyntax/zulip,timabbott/zulip,showell/zulip,hackerkid/zulip,hackerkid/zulip,hackerkid/zulip,punchagan/zulip,brainwane/zulip,kou/zulip,timabbott/zulip,synicalsyntax/zulip,hackerkid/zulip,zulip/zulip,synicalsyntax/zulip,shubhamdhama/zulip,rht/zulip,rht/zulip,showell/zulip,synicalsyntax/zulip,tommyip/zulip,andersk/zulip,showell/zulip,andersk/zulip,eeshangarg/zulip,shubhamdhama/zulip,zulip/zulip,synicalsyntax/zulip,brainwane/zulip,shubhamdhama/zulip