Fix Checkstyle violation

spring-tx/src/main/java/org/springframework/transaction/reactive/TransactionalOperatorImpl.java

@@ -75,15 +75,13 @@ final class TransactionalOperatorImpl implements TransactionalOperator {
 	public <T> Flux<T> execute(TransactionCallback<T> action) throws TransactionException {
 		return TransactionContextManager.currentContext().flatMapMany(context -> {
 			Mono<ReactiveTransaction> status = this.transactionManager.getReactiveTransaction(this.transactionDefinition);
-			return status.flatMapMany(it -> {
 			// This is an around advice: Invoke the next interceptor in the chain.
 			// This will normally result in a target object being invoked.
 			// Need re-wrapping of ReactiveTransaction until we get hold of the exception
 			// through usingWhen.
-				return Flux.usingWhen(Mono.just(it), action::doInTransaction,
+			return status.flatMapMany(it -> Flux.usingWhen(Mono.just(it), action::doInTransaction,
 					this.transactionManager::commit, s -> Mono.empty())
-						.onErrorResume(ex -> rollbackOnException(it, ex).then(Mono.error(ex)));
-			});
+					.onErrorResume(ex -> rollbackOnException(it, ex).then(Mono.error(ex))));
 		})
 		.subscriberContext(TransactionContextManager.getOrCreateContext())
 		.subscriberContext(TransactionContextManager.getOrCreateContextHolder());