output: drop current_mode

This is now unused.

include/sway/output.h

@@ -33,8 +33,6 @@ struct sway_output {
 	int width, height; // transformed buffer size
 	enum wl_output_subpixel detected_subpixel;
 	enum scale_filter_mode scale_filter;
-	// last applied mode when the output is powered off
-	struct wlr_output_mode *current_mode;
 
 	bool enabling, enabled;
 	list_t *workspaces;

sway/config/output.c

@@ -510,10 +510,6 @@ bool apply_output_config(struct output_config *oc, struct sway_output *output) {
 	struct wlr_output_state pending = {0};
 	queue_output_config(oc, output, &pending);
 
-	if (!oc || oc->power != 0) {
-		output->current_mode = pending.mode;
-	}
-
 	sway_log(SWAY_DEBUG, "Committing output %s", wlr_output->name);
 	if (!wlr_output_commit_state(wlr_output, &pending)) {
 		// Failed to commit output changes, maybe the output is missing a CRTC.

sway/tree/output.c

@@ -271,7 +271,6 @@ void output_disable(struct sway_output *output) {
 	list_del(root->outputs, index);
 
 	output->enabled = false;
-	output->current_mode = NULL;
 
 	arrange_root();