drm/amd/display: removed unused function dc_link_reallocate_mst_payload.

[Why]
Found that dc_link_reallocate_mst_payload is not used anymore
in any of the use case scenario.

[How]
removed dc_link_reallocate_mst_payload function definition
and declaration.
Signed-off-by: Robin Singh <robin.singh@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@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/core/dc_link.c

@@ -3136,50 +3136,6 @@ static enum dc_status deallocate_mst_payload(struct pipe_ctx *pipe_ctx)
 	return DC_OK;
 }
 
-enum dc_status dc_link_reallocate_mst_payload(struct dc_link *link)
-{
-	int i;
-	struct pipe_ctx *pipe_ctx;
-
-	// Clear all of MST payload then reallocate
-	for (i = 0; i < MAX_PIPES; i++) {
-		pipe_ctx = &link->dc->current_state->res_ctx.pipe_ctx[i];
-
-		/* driver enable split pipe for external monitors
-		 * we have to check pipe_ctx is split pipe or not
-		 * If it's split pipe, driver using top pipe to
-		 * reaallocate.
-		 */
-		if (!pipe_ctx || pipe_ctx->top_pipe)
-			continue;
-
-		if (pipe_ctx->stream && pipe_ctx->stream->link == link &&
-				pipe_ctx->stream->dpms_off == false &&
-				pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) {
-			deallocate_mst_payload(pipe_ctx);
-		}
-	}
-
-	for (i = 0; i < MAX_PIPES; i++) {
-		pipe_ctx = &link->dc->current_state->res_ctx.pipe_ctx[i];
-
-		if (!pipe_ctx || pipe_ctx->top_pipe)
-			continue;
-
-		if (pipe_ctx->stream && pipe_ctx->stream->link == link &&
-				pipe_ctx->stream->dpms_off == false &&
-				pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST) {
-			/* enable/disable PHY will clear connection between BE and FE
-			 * need to restore it.
-			 */
-			link->link_enc->funcs->connect_dig_be_to_fe(link->link_enc,
-									pipe_ctx->stream_res.stream_enc->id, true);
-			dc_link_allocate_mst_payload(pipe_ctx);
-		}
-	}
-
-	return DC_OK;
-}
 
 #if defined(CONFIG_DRM_AMD_DC_HDCP)
 static void update_psp_stream_config(struct pipe_ctx *pipe_ctx, bool dpms_off)

drivers/gpu/drm/amd/display/dc/dc_link.h

@@ -276,7 +276,6 @@ enum dc_detect_reason {
 bool dc_link_detect(struct dc_link *dc_link, enum dc_detect_reason reason);
 bool dc_link_get_hpd_state(struct dc_link *dc_link);
 enum dc_status dc_link_allocate_mst_payload(struct pipe_ctx *pipe_ctx);
-enum dc_status dc_link_reallocate_mst_payload(struct dc_link *link);
 
 /* Notify DC about DP RX Interrupt (aka Short Pulse Interrupt).
  * Return: