radeonsi/gfx9: disable the 2-bit format fetch fix
radeonsi/gfx9: disable the 2-bit format fetch fix

Reviewed-by: Nicolai Hähnle <0d0be6cf5ad662651be2dc5dfd44aa2b09d4c1cc@amd.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler