Revert "{BlueSpice] Register Watch List module"

Key conflict with Prefs-watchlist. No time to fix it now. Revert for the moment.

This reverts commit 2047cefa7ad5c2a18a73e5d380008f425156f01b.

Change-Id: I11d25b9227bf992d0a9fed0853dca2b728c6c65e