Simple change to remove unnecessary #define statement.

BUG=http://code.google.com/p/chromium/issues/detail?id=137924
TEST=TestDeferredCanvasBitmapSizeThreshold unit test
Review URL: https://codereview.appspot.com/6845071

git-svn-id: http://skia.googlecode.com/svn/trunk@6531 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed