drm/bridge: ite-it6263: drop atomic_check() callback

As drm_bridge_connector now provides atomic_check() implementation which
calls drm_atomic_helper_connector_hdmi_check(), drop the duplicating
callback from the bridge driver.

Reviewed-by: Liu Ying <victor.liu@nxp.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241210-bridge_hdmi_check-v1-2-a8fdd8c5afa5@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drivers/gpu/drm/bridge/ite-it6263.c

@@ -569,15 +569,6 @@ static int it6263_read_edid(void *data, u8 *buf, unsigned int block, size_t len)
 	return 0;
 }
 
-static int it6263_bridge_atomic_check(struct drm_bridge *bridge,
-				      struct drm_bridge_state *bridge_state,
-				      struct drm_crtc_state *crtc_state,
-				      struct drm_connector_state *conn_state)
-{
-	return drm_atomic_helper_connector_hdmi_check(conn_state->connector,
-						      conn_state->state);
-}
-
 static void
 it6263_bridge_atomic_disable(struct drm_bridge *bridge,
 			     struct drm_bridge_state *old_bridge_state)
@@ -812,7 +803,6 @@ static const struct drm_bridge_funcs it6263_bridge_funcs = {
 	.mode_valid = it6263_bridge_mode_valid,
 	.atomic_disable = it6263_bridge_atomic_disable,
 	.atomic_enable = it6263_bridge_atomic_enable,
-	.atomic_check = it6263_bridge_atomic_check,
 	.detect = it6263_bridge_detect,
 	.edid_read = it6263_bridge_edid_read,
 	.atomic_get_input_bus_fmts = it6263_bridge_atomic_get_input_bus_fmts,