Revert "Merge branch 'mr-widget-text' into 'master'

CHANGELOG

app/assets/stylesheets/pages/merge_requests.scss

...iews/projects/merge_requests/show/_how_to_merge.html.haml

app/views/projects/merge_requests/widget/_closed.html.haml

app/views/projects/merge_requests/widget/_heading.html.haml

app/views/projects/merge_requests/widget/_locked.html.haml

app/views/projects/merge_requests/widget/_merged.html.haml

app/views/projects/merge_requests/widget/_open.html.haml

...ews/projects/merge_requests/widget/open/_accept.html.haml

...s/projects/merge_requests/widget/open/_archived.html.haml

...iews/projects/merge_requests/widget/open/_check.html.haml

.../projects/merge_requests/widget/open/_conflicts.html.haml

...ects/merge_requests/widget/open/_missing_branch.html.haml

...rojects/merge_requests/widget/open/_not_allowed.html.haml

...ws/projects/merge_requests/widget/open/_nothing.html.haml

...ews/projects/merge_requests/widget/open/_reload.html.haml

app/views/projects/merge_requests/widget/open/_wip.html.haml

app/views/shared/issuable/_form.html.haml