- addressed a problem with materials depending on automatically added textures.

This isn't a fix, it just removes a sanity check that really shouldn't be, but thanks of an underspecification of the material definition it was never possible to do this case properly.

src/r_data/gldefs.cpp

@@ -1401,6 +1401,7 @@ class GLDefsParser
 					!usershaders[i].defines.Compare(usershader.defines))
 				{
 					SetShaderIndex(tex, i + FIRST_USER_SHADER);
+					tex->SetShaderLayers(mlay);
 					return;
 				}
 			}