remove commented out Forest worldstate

Signed-off-by: garyschulte <garyschulte@gmail.com>

Author: garyschulte

ethereum/referencetests/src/main/java/org/hyperledger/besu/ethereum/referencetests/ReferenceTestWorldState.java

@@ -93,6 +93,5 @@ static void insertAccount(
   static ReferenceTestWorldState create(final Map<String, AccountMock> accounts) {
     // delegate to a Bonsai reference test world state:
     return BonsaiReferenceTestWorldState.create(accounts);
-    //    return DefaultReferenceTestWorldState.create(accounts);
   }
 }