Code review comment for lp:~divmod-dev/divmod.org/1209082-remove-bogus-performance-tests

I think that the discussion resulted in the conclusion that these particular tests are untenable, and removing them is the appropriate way forward. (Specifically, we can't make them pass on all SQLites we support, because Py2.6 and Py2.7 sqlite3 modules have different behavior...). Please merge.