list_render: Remove support for jQuery items.
list_render: Remove support for jQuery items.

All of our widgets now use templates to turn
items into HTML strings, so we can simplify
the code.

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