Simplified state check when closing transaction

New condition is the same as old one by reads a bit better.

Author: lutovich

driver/src/main/java/org/neo4j/driver/internal/ExplicitTransaction.java

@@ -158,7 +158,7 @@ CompletionStage<Void> closeAsync()
         {
             return commitAsync();
         }
-        else if ( state == State.ACTIVE || state == State.MARKED_FAILED || state == State.TERMINATED )
+        else if ( state != State.COMMITTED && state != State.ROLLED_BACK )
         {
             return rollbackAsync();
         }