Replace duplicate code with existing method

Resolves #2702

binders/kafka-binder/spring-cloud-stream-binder-kafka-core/src/main/java/org/springframework/cloud/stream/binder/kafka/provisioning/KafkaTopicProvisioner.java

@@ -561,8 +561,7 @@ public Collection<PartitionInfo> getPartitionsForTopic(final int partitionCount,
 				// In some cases, the above partition query may not throw an UnknownTopic..Exception for various reasons.
 				// For that, we are forcing another query to ensure that the topic is present on the server.
 				if (CollectionUtils.isEmpty(partitions)) {
-					try (AdminClient adminClient = AdminClient
-							.create(this.adminClientProperties)) {
+					try (AdminClient adminClient = createAdminClient()) {
 						final DescribeTopicsResult describeTopicsResult = adminClient
 								.describeTopics(Collections.singletonList(topicName));