Remove Skia suppressions.

BUG=341448,344497
TBR=robertphillips@google.com

Review URL: https://codereview.chromium.org/185713006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254497 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254497