0e68bac852 "set up python unit test
infrastructure" had introduced unotest/source/python/org/libreoffice/unotest.py
with the comment and commented-out code. It claims it has extraced "boostraping
code from convwatch.py to unotest.py", but I can't find a trace in the git
history of a prior incarnation of that comment and commented-out code. It is
unclear what problem exactly the commenting-out of the check was supposed to
address. So put the check in place and see what, if anything, breaks.
(The commented-out return appears to be truly unnecessary, and has been removed
completely.)
Change-Id: Ie2108d70fbe076cd0832bd23bfb29fc60eedffef
Reviewed-on: https://gerrit.libreoffice.org/80029
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>