drm/amd/display: Remove power sequencing check

[Why]
	Some ASICs keep backlight powered on after dpms off
	command has been issued.

[How]
	The check for no edp power sequencing was never going to pass.
	The value is never changed from what it is set by design.

Cc: stable@vger.kernel.org # 6.1+
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2765Reviewed-by: Swapnil Patel <swapnil.patel@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: Agustin Gutierrez <agustin.gutierrez@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/link/link_dpms.c

@@ -1932,8 +1932,7 @@ static void disable_link_dp(struct dc_link *link,
 	dp_disable_link_phy(link, link_res, signal);
 
 	if (link->connector_signal == SIGNAL_TYPE_EDP) {
-		if (!link->dc->config.edp_no_power_sequencing &&
-			!link->skip_implict_edp_power_control)
+		if (!link->skip_implict_edp_power_control)
 			link->dc->hwss.edp_power_control(link, false);
 	}