Fix the queueToDevice tests for the new fakeindexeddb

dumbmatter/fakeIndexedDB#93 causes a bunch
of tests to start failing because the fake timers need running in
order for fake indexeddb to work. It also seems to cause failures
to bleed between tests somehow if fake timers are enabled/disabled.
This keeps all the fake timer tests in one suite and all the others
in another, which appears to work.

This should allow #4224
to be merged.

Author: dbkr