drm/i915/huc: drop intel_huc_is_authenticated

The function name is confusing, because it doesn't check the actual auth
status in HW but the SW status. Given that there is only one user (the
huc_auth function itself), just get rid of it and use the FW status
checker directly.
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220504204816.2082588-2-daniele.ceraolospurio@intel.com

drivers/gpu/drm/i915/gt/uc/intel_huc.c

@@ -96,7 +96,7 @@ int intel_huc_auth(struct intel_huc *huc)
 	struct intel_guc *guc = &gt->uc.guc;
 	int ret;
 
-	GEM_BUG_ON(intel_huc_is_authenticated(huc));
+	GEM_BUG_ON(intel_uc_fw_is_running(&huc->fw));
 
 	if (!intel_uc_fw_is_loaded(&huc->fw))
 		return -ENOEXEC;

drivers/gpu/drm/i915/gt/uc/intel_huc.h

@@ -50,11 +50,6 @@ static inline bool intel_huc_is_used(struct intel_huc *huc)
 	return intel_uc_fw_is_available(&huc->fw);
 }
 
-static inline bool intel_huc_is_authenticated(struct intel_huc *huc)
-{
-	return intel_uc_fw_is_running(&huc->fw);
-}
-
 void intel_huc_load_status(struct intel_huc *huc, struct drm_printer *p);
 
 #endif