fix double logging

Signed-off-by: Tim Farber-Newman <[email protected]>

Author: timfn-hg

hedera-node/hedera-app/src/main/java/com/hedera/node/app/blocks/impl/streaming/AbstractBlockNodeConnection.java

@@ -118,7 +118,7 @@ final boolean updateConnectionState(
 
         if (!latestState.canTransitionTo(newState)) {
             logger.warn(
-                    "{} Attempted to downgrade state from {} to {}, but this is not allowed; this is not allowed",
+                    "{} Attempted to downgrade state from {} to {}, but this is not allowed",
                     this,
                     latestState,
                     newState);