[0.89-fb] [HBASE-9967] delete store files when a flush aborts

Author: pervyshev

Test Plan: unit test

Reviewers: aaiyer, liyintang, manukranthk, rshroff

Reviewed By: aaiyer

CC: hbase-eng@

Differential Revision: https://phabricator.fb.com/D1049445

Task ID: 3111537

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.89-fb@1542033 13f79535-47bb-0310-9956-ffa450edef68