removes hibernate-validator dependency declaration.
removes hibernate-validator dependency declaration.

It is brought in by spring-boot-starter-validation

spring-cloud/spring-cloud-release-tools,spring-cloud/spring-cloud-release-tools,spring-cloud/spring-cloud-release-tools,spring-cloud/spring-cloud-release-tools,spring-cloud/spring-cloud-release-tools,spring-cloud/spring-cloud-release-tools