drm/i915: Drop pointless (void*) cast

Remove the pointless (void*) cast, the incoming pointer is already
the correct type.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240307151810.24208-5-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>

drivers/gpu/drm/i915/display/intel_sdvo.c

@@ -2378,7 +2378,7 @@ intel_sdvo_connector_atomic_get_property(struct drm_connector *connector,
 					 u64 *val)
 {
 	struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
-	const struct intel_sdvo_connector_state *sdvo_state = to_intel_sdvo_connector_state((void *)state);
+	const struct intel_sdvo_connector_state *sdvo_state = to_intel_sdvo_connector_state(state);
 
 	if (property == intel_sdvo_connector->tv_format) {
 		int i;