queue.c: remove queue_clear.

client code knows what objects is stored in the queue
and its only 3 lines to do a simple free() on the items.

src/inotify.c

@@ -224,6 +224,9 @@ void notify_exit() {
 	rbtree_free(&tree);
 	
 	if (event_queue) {
+        notify_event *e;
+        while(e = queue_dequeue(event_queue))
+            notify_event_del(e); 
 		queue_destroy(event_queue);
         event_queue = NULL;
     }

src/queue.c

@@ -70,28 +70,10 @@ queue_t queue_init() {
     return q;
 }
 
-void queue_clear(queue_t q) {
-
-    struct node *t, *n;
-
-    if (q == NULL)
-        return;
-
-    n = q->tail.n;
-
-    while(n) {
-        t = n->next;
-        free(n);
-        n = t;
-    }
-
-    init(q);
-}
-
 void queue_destroy(queue_t q) {
 
-    queue_clear(q);
-    free(q);
+    if (q)
+        free(q);
 }
 
 void queue_enqueue(queue_t q, void *obj) {

src/queue.h

@@ -28,8 +28,6 @@ int queue_isempty(queue_t q);
 
 size_t queue_num_items(queue_t q);
 
-void queue_clear(queue_t q);
-
 void queue_destroy(queue_t q);
 
 #endif /* __QUEUE_H */

test/t_queue.c

@@ -27,7 +27,7 @@ int main() {
 
     assert(queue_isempty(q) == 0);
 
-    queue_clear(q);
+    while(queue_dequeue(q));
 
     assert(queue_isempty(q));