Core/Misc: Remove unused headers

src/server/game/Handlers/QueryHandler.cpp

@@ -17,7 +17,6 @@
  */
 
 #include "Common.h"
-#include "Language.h"
 #include "DatabaseEnv.h"
 #include "WorldPacket.h"
 #include "WorldSession.h"
@@ -28,7 +27,6 @@
 #include "Player.h"
 #include "UpdateMask.h"
 #include "NPCHandler.h"
-#include "Pet.h"
 #include "MapManager.h"
 
 void WorldSession::SendNameQueryOpcode(ObjectGuid guid)