Clang 13: Fix build errors ...

... due to local variables only being written to (but never read).

Signed-off-by: Daniel Edwards <dev@danieledwards.de>

Code/Framework/GridMate/GridMate/Carrier/Carrier.cpp

@@ -1952,8 +1952,8 @@ CarrierThread::ProcessConnections()
 
         bool isHandshakeTimeOut = false;
         bool isConnectionTimeout = false;
-        bool isBadTrafficConditions = false;
-        bool isBadPackets = false;
+        [[maybe_unused]] bool isBadTrafficConditions = false;
+        [[maybe_unused]] bool isBadPackets = false;
         if (connection->m_isBadPackets)
         {
             isBadPackets = true;