stream create: Remove obsolete markup.
stream create: Remove obsolete markup.

We removed the last code to use the data-email
markup in the last commit.  (It was actually
just needed for tests.)

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