PEP-8 pulp.server.managers.repo.sync and tests.

It isn't running, but it also doesn't pass. I felt a little conflicted about killing it until I realized that it's not really a very useful test anyway, as it also commented out the assertion. If this becomes a problem in the future (i.e., it's actually a bug that this test doesn't pass), we should write a real test for it. I don't think keeping around this test is very useful since it is such poor quality.