[ai-0.36-91] fix: guild task reward mail contains to money if item was sent by mail
[ai-0.36-92] do not offer items with no price as guild tasks
TDB 335.57 - 2014/10/20
Merge remote-tracking branch 'remotes/trinity/3.3.5' into trinity-wotlk-ai
Merge branch '3.3.5' of https://github.com/TrinityCore/TrinityCore into ghbb
Build/CMake: CMake options cleanup after febb26d4b711762b1ee605705e7fa949b9871df1
Core/Misc: Remove dead code

Remove a double check on result of same function, with the 2nd being always true.

(cherry picked from commit e2c2bce90f1713136c2a256e423e5d136dab2389)
Merge branch '3.3.5' of https://github.com/TrinityCore/TrinityCore into ghbb
Merge branch 'trinity-wotlk-ai' of https://github.com/ike3/mangosbot into ghbb