Delete file for Update

git-svn-id: https://plugins.svn.wordpress.org/isshrinker/trunk@1050477 b8457f37-d9ea-0310-8a92-e5e31aec5664
Tested on Version 4.1

git-svn-id: https://plugins.svn.wordpress.org/isshrinker/trunk@1050479 b8457f37-d9ea-0310-8a92-e5e31aec5664