Core/Misc: fixed issues reported by pvs studio

closes #281

src/server/game/Server/WorldSocket.cpp

@@ -437,6 +437,7 @@ WorldSocket::ReadDataHandlerResult WorldSocket::ReadDataHandler()
         if (!_worldSession)
         {
             TC_LOG_ERROR("network.opcode", "ProcessIncoming: Client not authed opcode = %u", uint32(opcode));
+            delete packetToQueue;
             return ReadDataHandlerResult::Error;
         }