Replace list_empty with a simple alternative

common/list.c

@@ -62,13 +62,6 @@ void list_cat(list_t *list, list_t *source) {
 	}
 }
 
-void list_empty(list_t *list) {
-	list->capacity = 10;
-	list->length = 0;
-	free(list->items);
-	list->items = malloc(sizeof(void*) * list->capacity);
-}
-
 void list_qsort(list_t *list, int compare(const void *left, const void *right)) {
 	qsort(list->items, list->length, sizeof(void *), compare);
 }

include/list.h

@@ -14,7 +14,6 @@ void list_add(list_t *list, void *item);
 void list_insert(list_t *list, int index, void *item);
 void list_del(list_t *list, int index);
 void list_cat(list_t *list, list_t *source);
-void list_empty(list_t *list);
 // See qsort. Remember to use *_qsort functions as compare functions,
 // because they dereference the left and right arguments first!
 void list_qsort(list_t *list, int compare(const void *left, const void *right));

sway/desktop/transaction.c

@@ -241,7 +241,7 @@ static void transaction_progress_queue() {
 		transaction_apply(transaction);
 		transaction_destroy(transaction);
 	}
-	list_empty(server.transactions);
+	server.transactions->length = 0;
 }
 
 static int handle_timeout(void *data) {