[EFL] Unreviewed gardening.

More plugin test cases skipped, failing after r141051,
plugins/document-open.html is not crashing, but currently timing out.

* platform/efl-wk2/TestExpectations:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@141242 268f45cc-cd09-0410-ab3c-d52691b4dbfc