drm/nouveau/gem: Remove unused function
drm/nouveau/gem: Remove unused function

Remove the function domain_to_ttm() that is not used anywhere.

This was partially found by using a static code analysis program
called cppcheck.

Signed-off-by: Rickard Strandqvist <b2870f70e324b62b54eced4cf50284b23ec5baab@spectrumdigital.se>
Signed-off-by: Ben Skeggs <d9f27fb07c1e9f131223ad827fa5179f3846c30b@redhat.com>

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