Revert "Upgrade to Spring HATEOAS 0.22.0"

This reverts commit fb4099dfb1.

spring-boot-dependencies/pom.xml

@@ -154,7 +154,7 @@
 		<spring-cloud-connectors.version>1.2.3.RELEASE</spring-cloud-connectors.version>
 		<spring-batch.version>3.0.7.RELEASE</spring-batch.version>
 		<spring-data-releasetrain.version>Ingalls-BUILD-SNAPSHOT</spring-data-releasetrain.version>
-		<spring-hateoas.version>0.22.0.RELEASE</spring-hateoas.version>
+		<spring-hateoas.version>0.21.0.RELEASE</spring-hateoas.version>
 		<spring-integration.version>4.3.6.RELEASE</spring-integration.version>
 		<spring-integration-java-dsl.version>1.2.0.RELEASE</spring-integration-java-dsl.version>
 		<spring-kafka.version>1.1.1.RELEASE</spring-kafka.version>