drm/nouveau/pm/gf100: remove undefined TEX.PM_UNKC8 mux
drm/nouveau/pm/gf100: remove undefined TEX.PM_UNKC8 mux

This mux only exists on GF108+ (except for GF110 one), but since it is
not used by the userspace we can drop it for now.

Signed-off-by: Samuel Pitoiset <506e97eed81d9e59d22f4c73fb51123bb62b4a30@gmail.com>
Signed-off-by: Ben Skeggs <d9f27fb07c1e9f131223ad827fa5179f3846c30b@redhat.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs