Remove the old skimage expectations.

Remove the old skimage expectations.

As of https://code.google.com/p/skia/source/detail?r=11712 ,
the bots are now reading the expectations from a new place,
so these are no longer needed.

Unreviewed.

BUG=skia:1466
Committed: https://code.google.com/p/skia/source/detail?r=11727

[scroggo, 2013-10-11 15:12:53]

Committed patchset #2 manually as r11727 (presubmit successful).