[Qt] Unskip working filter tests.

Unreviewed gardening

These tests work if we remove our failure expecting baselines.

* platform/qt/TestExpectations:
* platform/qt/css3/filters/filter-animation-expected.png: Removed.
* platform/qt/css3/filters/filter-animation-expected.txt: Removed.
* platform/qt/css3/filters/filter-animation-from-none-expected.png: Removed.
* platform/qt/css3/filters/filter-animation-from-none-expected.txt: Removed.
* platform/qt/css3/filters/filter-property-computed-style-expected.txt: Removed.
* platform/qt/css3/filters/filter-property-expected.png: Removed.
* platform/qt/css3/filters/filter-property-expected.txt: Removed.
* platform/qt/css3/filters/filter-property-parsing-expected.txt: Removed.
* platform/qt/css3/filters/filter-property-parsing-invalid-expected.txt: Removed.
* platform/qt/css3/filters/filter-repaint-expected.png: Removed.
* platform/qt/css3/filters/filter-repaint-expected.txt: Removed.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@141980 268f45cc-cd09-0410-ab3c-d52691b4dbfc