Revert "HADOOP-14445. Delegation tokens are not shared between KMS instances. Contributed by Xiao Chen and Rushabh S Shah."

This reverts commit 714a079ffb88540ec1e09d5023c35e1fa0dd016d.

 Conflicts:
	hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/key/kms/KMSTokenRenewer.java

(cherry picked from commit 9e4599fbd34b2f0a39f30a10c7e3eddc2bfd5a9e)
18 files changed