opt: remove useless code

src/fetch/client.h

@@ -388,7 +388,7 @@ Client *focustop(Monitor *m) {
 
 Client *get_next_stack_client(Client *c, bool reverse) {
 	if (!c || !c->mon)
-		return NULL; // 添加输入检查
+		return NULL;
 
 	Client *next = NULL;
 	if (reverse) {
@@ -396,11 +396,6 @@ Client *get_next_stack_client(Client *c, bool reverse) {
 			if (&next->link == &clients)
 				continue; /* wrap past the sentinel node */
 
-			if (c->mon->has_visible_fullscreen_client && !next->isfloating &&
-				!next->isfullscreen)
-				continue;
-
-			// 添加更安全的 VISIBLEON 检查
 			if (next != c && next->mon && VISIBLEON(next, c->mon))
 				return next;
 		}
@@ -409,10 +404,6 @@ Client *get_next_stack_client(Client *c, bool reverse) {
 			if (&next->link == &clients)
 				continue; /* wrap past the sentinel node */
 
-			if (c->mon->has_visible_fullscreen_client && !next->isfloating &&
-				!next->isfullscreen)
-				continue;
-
 			if (next != c && next->mon && VISIBLEON(next, c->mon))
 				return next;
 		}

src/layout/arrange.h

@@ -597,7 +597,6 @@ arrange(Monitor *m, bool want_animation) {
 	m->visible_clients = 0;
 	m->visible_tiling_clients = 0;
 	m->visible_scroll_tiling_clients = 0;
-	m->has_visible_fullscreen_client = false;
 
 	wl_list_for_each(c, &clients, link) {
 
@@ -611,9 +610,6 @@ arrange(Monitor *m, bool want_animation) {
 			if (!c->isunglobal)
 				m->visible_clients++;
 
-			if (c->isfullscreen)
-				m->has_visible_fullscreen_client = true;
-
 			if (ISTILED(c)) {
 				m->visible_tiling_clients++;
 			}

src/mango.c

@@ -508,7 +508,6 @@ struct Monitor {
 	uint32_t visible_clients;
 	uint32_t visible_tiling_clients;
 	uint32_t visible_scroll_tiling_clients;
-	bool has_visible_fullscreen_client;
 	struct wlr_scene_optimized_blur *blur;
 	char last_surface_ws_name[256];
 	struct wlr_ext_workspace_group_handle_v1 *ext_group;