Removing old readme

git-svn-id: https://plugins.svn.wordpress.org/remove-howdy/trunk@838151 b8457f37-d9ea-0310-8a92-e5e31aec5664
Uploading newest readme.txt

git-svn-id: https://plugins.svn.wordpress.org/remove-howdy/trunk@838152 b8457f37-d9ea-0310-8a92-e5e31aec5664