Revert "drm/xe/forcewake: Add a helper xe_force_wake_ref_has_domain()"

This reverts commit deb05f84.

The helper function introduced in the reverted commit is for handling
the "refcounted domain mask" introduced in commit a7ddcea1
("drm/xe: Error handling in xe_force_wake_get()"). Since that API change
only exists in 6.13 and later, this helper is unnecessary in 6.12 stable
kernel.

Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Badal Nilawar <badal.nilawar@intel.com>
Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Tomita Moeko <tomitamoeko@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>