some minor code cleaning

ZgatewayRF2.ino

@@ -51,7 +51,6 @@ void MQTTtoRF2(char * topicOri, char * datacallback) {
   long valueCODE  = 0;
   int valueUNIT = -1;
   int valuePERIOD = 0;
-  int valueBIT  = 0;
   
   int pos = topic.lastIndexOf(RF2codeKey);       
   if (pos != -1){

ZgatewayRFM69.ino

@@ -195,8 +195,7 @@ if ((topic == subjectMQTTtoRFM69) && (valueRCV == defaultRFM69ReceiverId)){
       // Acknowledgement to the GTWRF topic
     boolean result = client.publish(subjectGTWRFM69toMQTT, datacallback);
     if (result)trc(F("Ack published"));
-    return true;
-      break;
+      return true;
     }
     else {
       Serial.print("!");