drm/i915: Remove unused intel_huc_suspend

intel_huc_suspend() was added in 2022 by
commit 27536e0 ("drm/i915/huc: track delayed HuC load with a
fence")
but hasn't been used.

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Tvrtko Ursulin <tursulin@igalia.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241227113754.25871-2-tursulin@igalia.com

Author: Dr. David Alan Gilbert

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

@@ -427,19 +427,6 @@ void intel_huc_fini(struct intel_huc *huc)
 		intel_uc_fw_fini(&huc->fw);
 }
 
-void intel_huc_suspend(struct intel_huc *huc)
-{
-	if (!intel_uc_fw_is_loadable(&huc->fw))
-		return;
-
-	/*
-	 * in the unlikely case that we're suspending before the GSC has
-	 * completed its loading sequence, just stop waiting. We'll restart
-	 * on resume.
-	 */
-	delayed_huc_load_complete(huc);
-}
-
 static const char *auth_mode_string(struct intel_huc *huc,
 				    enum intel_huc_authentication_type type)
 {

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

@@ -57,7 +57,6 @@ int intel_huc_sanitize(struct intel_huc *huc);
 void intel_huc_init_early(struct intel_huc *huc);
 int intel_huc_init(struct intel_huc *huc);
 void intel_huc_fini(struct intel_huc *huc);
-void intel_huc_suspend(struct intel_huc *huc);
 int intel_huc_auth(struct intel_huc *huc, enum intel_huc_authentication_type type);
 int intel_huc_wait_for_auth_complete(struct intel_huc *huc,
 				     enum intel_huc_authentication_type type);