Fix a double execution of the same method (#3021)

Signed-off-by: Fabio Di Fabio <fabio.difabio@consensys.net>

ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/AbstractBlockParameterMethod.java

@@ -82,7 +82,6 @@ public abstract class AbstractBlockParameterMethod implements JsonRpcMethod {
           requestContext.getRequest().getId(), ((JsonRpcErrorResponse) response).getError());
     }
 
-    return new JsonRpcSuccessResponse(
+    return new JsonRpcSuccessResponse(requestContext.getRequest().getId(), response);
-        requestContext.getRequest().getId(), findResultByParamType(requestContext));
   }
 }