[FIX] remove: Redirect to the same page if only removing the a version

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48210 b456876b-0849-0410-b77d-98878d47e9d5
Just ran into a case where Proc_open was mandatory https://github.com/composer/composer/pull/1341#issuecomment-27269019

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48211 b456876b-0849-0410-b77d-98878d47e9d5