css: Remove redundant `.group-info-popover .member-list .user_circle` rule.
css: Remove redundant `.group-info-popover .member-list .user_circle` rule.

User circle inside `.group-info-popover` already has the class-name
`.popover_user_presence` which has the same properties.

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