delete files

git-svn-id: https://plugins.svn.wordpress.org/guiform/trunk@871436 b8457f37-d9ea-0310-8a92-e5e31aec5664
import

git-svn-id: https://plugins.svn.wordpress.org/guiform/trunk@871437 b8457f37-d9ea-0310-8a92-e5e31aec5664
import

git-svn-id: https://plugins.svn.wordpress.org/guiform/trunk@871438 b8457f37-d9ea-0310-8a92-e5e31aec5664
import

git-svn-id: https://plugins.svn.wordpress.org/guiform/trunk@871439 b8457f37-d9ea-0310-8a92-e5e31aec5664