delete files

git-svn-id: https://plugins.svn.wordpress.org/sliding-contact-form-by-formget/trunk@887303 b8457f37-d9ea-0310-8a92-e5e31aec5664
import 

git-svn-id: https://plugins.svn.wordpress.org/sliding-contact-form-by-formget/trunk@887305 b8457f37-d9ea-0310-8a92-e5e31aec5664
import 

git-svn-id: https://plugins.svn.wordpress.org/sliding-contact-form-by-formget/trunk@887306 b8457f37-d9ea-0310-8a92-e5e31aec5664
import 

git-svn-id: https://plugins.svn.wordpress.org/sliding-contact-form-by-formget/trunk@887307 b8457f37-d9ea-0310-8a92-e5e31aec5664