contrib/highlight: remove support for quiet mode (#2362)
contrib/highlight: remove support for quiet mode (#2362)

Also display everything before "Starting Vader" already.

Quiet mode was meant to suppress the version output (handled via `-q`
with Vader), and any messages during test collection/parsing, which are
not there anymore, and therefore also do not trigger the (removed)
spinner anymore.
neomake/neomake,codeinabox/neomake,neomake/neomake