[8200] Use FASTBUILD precompiled mode for debug case also. Author: Ambal

So in fact remove this define and use related includes unconditionally.

--HG--
branch : trunk

src/game/pchdef.h

@@ -9,8 +9,4 @@
 #include "Database/SQLStorage.h"
 #include "Opcodes.h"
 #include "SharedDefines.h"
-
-#ifdef FASTBUILD
-//add additional headers here to speed up compilation in release builds even more
 #include "ObjectMgr.h"
-#endif