Is MacGL really so special?

indra/llrender/llimagegl.cpp

@@ -1079,13 +1079,6 @@ BOOL LLImageGL::createGLTexture(S32 discard_level, const U8* data_in, BOOL data_
 	if (mUseMipMaps)
 	{
 		mAutoGenMips = gGLManager.mHasMipMapGeneration;
-#if LL_DARWIN
-		// On the Mac GF2 and GF4MX drivers, auto mipmap generation doesn't work right with alpha-only textures.
-		if(gGLManager.mIsGF2or4MX && (mFormatInternal == GL_ALPHA8) && (mFormatPrimary == GL_ALPHA))
-		{
-			mAutoGenMips = FALSE;
-		}
-#endif
 	}
 
 	mCurrentDiscardLevel = discard_level;