Few small optimizations here and there

src/server/scripts/Commands/cs_arena.cpp

@@ -83,7 +83,7 @@ public:
 
         if (type == 2 || type == 3 || type == 5 )
         {
-            if (Player::GetArenaTeamIdFromDB(target->GetGUID(), type) != 0)
+            if (Player::GetArenaTeamIdFromCharacterInfo(target->GetGUID(), type) != 0)
             {
                 handler->PSendSysMessage(LANG_ARENA_ERROR_SIZE, target->GetName().c_str());
                 handler->SetSentErrorMessage(true);