Remove RunGM-DebugGL step in preparation for http://codereview.appspot.com/6061051/ ('Allow GM to run multiple GPU configs in one run. Also add MSAA config.')
Remove RunGM-DebugGL step in preparation for http://codereview.appspot.com/6061051/ ('Allow GM to run multiple GPU configs in one run. Also add MSAA config.')

git-svn-id: 32fc27f4dcfb6c0385cd9719852b95fe6680452d@3731 2bbb7eff-a529-9590-31e7-b0007b416f81

google/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot