Revert "A fix for missing track number when cataloging .m4a (quicktime) audio files."

This reverts commit 47926ee3b2534a7ee9fcafc334dd15b49b0bd57b.
Revert "Changes provide proper storage and relationship between tvshow_episode, tvshow_season, tvshow and video  tables."

This reverts commit 55f1635536207cfcb72366b2c6d8804a24e7dfb8.

Not quite ready, still things I need to check.