drm/amd/display: Revert "Disconnect non-DP with no EDID"

[Why]
Found a use case (IPKVM) that DP-VGA active dongle does
not return any EDID and the mentioned commit broke it.

[How]
This reverts "Disconnect non-DP with no EDID"

Signed-off-by: Roy Chan <[email protected]>
Reviewed-by: Chris Park <[email protected]>
Acked-by: Stylon Wang <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

Author: Roy Chan

drivers/gpu/drm/amd/display/dc/core/dc_link.c

@@ -1099,24 +1099,6 @@ static bool dc_link_detect_helper(struct dc_link *link,
 			    dc_is_dvi_signal(link->connector_signal)) {
 				if (prev_sink)
 					dc_sink_release(prev_sink);
-				link_disconnect_sink(link);
-
-				return false;
-			}
-			/*
-			 * Abort detection for DP connectors if we have
-			 * no EDID and connector is active converter
-			 * as there are no display downstream
-			 *
-			 */
-			if (dc_is_dp_sst_signal(link->connector_signal) &&
-				(link->dpcd_caps.dongle_type ==
-						DISPLAY_DONGLE_DP_VGA_CONVERTER ||
-				link->dpcd_caps.dongle_type ==
-						DISPLAY_DONGLE_DP_DVI_CONVERTER)) {
-				if (prev_sink)
-					dc_sink_release(prev_sink);
-				link_disconnect_sink(link);
 
 				return false;
 			}