st/nine: Drop path for ureg_NRM and ureg_CLAMP
st/nine: Drop path for ureg_NRM and ureg_CLAMP

using MIN/MAX is fine instead of CLAMP.
NRM doesn't exist anymore.

Signed-off-by: Axel Davy <2b6ef604b998fb81662f85c329e4fc020eae8e5d@ens.fr>
Reviewed-by: Patrick Rudolph <2af63f351b8bda7baf3a287b873bcd3ca66a59bb@das-labor.org>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler