Remove duplicate error checks from Texture subImage and subImageCompressed.

Issue=306
Signed-of-by: Nicolas Capens

These errors are validated by validateSubImageParams* now, no need to do it twice.

git-svn-id: http://angleproject.googlecode.com/svn/trunk@1083 736b8ea6-26fd-11df-bfd4-992fa37f6226
2 files changed