flimflam-test: Fix syntax error in mm-disconnect

This triggers pylint warnings and even a cursory glance reveals that
this would trigger an exception at runtime.  This was apparently broken
in b9582b442509904e4b18ba6f40fc4e47f6b858db when the line defining
manager was removed in a refactoring.

TEST=Pylint no longer complains

Change-Id: Ieb055f7fb5a379b107f98c83b6b3b3191ae59a04
Reviewed-on: https://gerrit.chromium.org/gerrit/42155
Tested-by: Christopher Wiley <wiley@chromium.org>
Reviewed-by: Thieu Le <thieule@chromium.org>
Commit-Queue: Christopher Wiley <wiley@chromium.org>
1 file changed