Unreviewed gardening.

* platform/qt-5.0: Removed.
* platform/qt-5.0/TestExpectations: Removed.
* platform/qt-5.0/compositing: Removed.
* platform/qt-5.0/compositing/visibility: Removed.
* platform/qt-5.0/css1: Removed.
* platform/qt-5.0/css2.1: Removed.
* platform/qt-5.0/tables: Removed.
* platform/qt-5.0/tables/mozilla: Removed.
* platform/qt-5.0/tables/mozilla/bugs: Removed.
* platform/qt.5-0: Removed.
* platform/qt.5-0/fast: Removed.
* platform/qt.5-0/fast/text: Removed.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@154749 268f45cc-cd09-0410-ab3c-d52691b4dbfc