[0.89-fb] [master] Fix TestHRegionDoubleClose

Author: aaiyer

Summary: Fix TestHRegionDoubleClose

Test Plan: run TestHRegionDoubleClose

Reviewers: rshroff, liyintang

Reviewed By: liyintang

CC: hbase-eng@

Differential Revision: https://phabricator.fb.com/D1096130

Task ID: 2973864

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.89-fb@1553320 13f79535-47bb-0310-9956-ffa450edef68