CopyTexImage: Don't check sRGB vs LINEAR for desktop GL
CopyTexImage: Don't check sRGB vs LINEAR for desktop GL

In OpenGL 4.3, new language was added that would require
this check. But, if this check results in broken applications
then perhaps it will be reversed.

For now, remove this check and re-evaluate when
desktop GL 4.3 is closer.

NOTE: This is a candidate for the 9.1 branch.

Signed-off-by: Jordan Justen <a79006884ba9cf5f4f7fcbb92a15b208780d8c97@intel.com>
Reviewed-by: Anuj Phogat <e2026475996c48f0b97fd37e84129b3912980428@gmail.com>

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