flake8
passed.
JSHint
passed.
Remove mostly useless admin widget collapse feature.
Review Request #10574 — Created May 31, 2019 and submitted
The admin dashboard had a feature that allowed individual widgets to be
collapsed down into just the header. This was always ridiculous, and
just added clutter and unnecessary complexity. This change eliminates
it.
Loaded the admin dashboard and saw that widgets now just had a close
button.
