tests: Re-enable mainloop test under AddressSanitizer
This is a partial revert of commit f3783520.
The leak of a GMainLoop
which prompted it has been fixed by commit
4f5da833 in merge request !2535 (merged).
Signed-off-by: Philip Withnall pwithnall@endlessos.org
See: #2598 (closed) Fixes: #2307 (closed)
Closes #2307 (closed)