Delete assets

git-svn-id: https://plugins.svn.wordpress.org/multilingual-press/trunk@885679 b8457f37-d9ea-0310-8a92-e5e31aec5664
Remove old files

git-svn-id: https://plugins.svn.wordpress.org/multilingual-press/trunk@885680 b8457f37-d9ea-0310-8a92-e5e31aec5664