Prune old #members scss

Hopefully this wasn't also used somewhere else (communities?). I did
check.
Turn off static caching for now

I'm seeing errant behavior locally (same as @clone1018 in
[IRC](https://botbot.me/freenode/gittip/msg/4196289/)). Turning off for
now until we can debug.
Bump version to 9.3.22
Bump version to 9.3.22-dev