Remove Unused AWS KMS Dependency (#43671)

* We don't make use of KMS at the moment, no need to have this dependency here

plugins/repository-s3/build.gradle

@@ -33,7 +33,6 @@ versions << [
 
 dependencies {
   compile "com.amazonaws:aws-java-sdk-s3:${versions.aws}"
-  compile "com.amazonaws:aws-java-sdk-kms:${versions.aws}"
   compile "com.amazonaws:aws-java-sdk-core:${versions.aws}"
   compile "com.amazonaws:jmespath-java:${versions.aws}"
   compile "org.apache.httpcomponents:httpclient:${versions.httpclient}"

plugins/repository-s3/licenses/aws-java-sdk-kms-1.11.562.jar.sha1

@@ -1 +0,0 @@
-1fdf4daf1960fe760e7a950dd28a05c5abc12788