Remove a Gossip Script which is already in DB

Remove script for Khadgar all of the gossip menus and options are already in db and this is only a gossip script, will deal with db stuff in next commit
a correction
Core: Fix typo in cec2cc806b418997f387bf1324454b7b76b9f0fa
Core/Misc: Get rid of some warnings.
Core/Misc: Kill few more warnings.
Merge branch 'master' of https://github.com/TrinityCore/TrinityCore into ghbb