Revert "drm/amd/display: Fix underscan not using proper scaling"

This reverts commit 80e80ec8.

This commit fixed an issue with underscan commits not updating all
needed timing values, but through various refactors it is no longer
necessary. It causes corruption on odm combine by
overwriting the halved h_active in the stream timing
Signed-off-by: NDavid Francis <David.Francis@amd.com>
Reviewed-by: NRoman Li <Roman.Li@amd.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Reviewed-by: NNicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

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

@@ -2130,7 +2130,7 @@ void dc_commit_updates_for_stream(struct dc *dc,
 	enum surface_update_type update_type;
 	struct dc_state *context;
 	struct dc_context *dc_ctx = dc->ctx;
-	int i, j;
+	int i;
 
 	stream_status = dc_stream_get_status(stream);
 	context = dc->current_state;
@@ -2168,16 +2168,6 @@ void dc_commit_updates_for_stream(struct dc *dc,
 
 		copy_surface_update_to_plane(surface, &srf_updates[i]);
 
-		if (update_type >= UPDATE_TYPE_MED) {
-			for (j = 0; j < dc->res_pool->pipe_count; j++) {
-				struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[j];
-
-				if (pipe_ctx->plane_state != surface)
-					continue;
-
-				resource_build_scaling_params(pipe_ctx);
-			}
-		}
 	}
 
 	copy_stream_update_to_stream(dc, context, stream, stream_update);