BUG/MINOR: mworker: no need to stop peers for each proxy

The mworker_cleanlisteners() was cleaning the peers in the proxy loop,
which is useless since we need to stop the peers only once.
diff --git a/src/haproxy.c b/src/haproxy.c
index d40316a..6504e96 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -534,22 +534,21 @@
 	struct proxy *curproxy;
 	struct peers *curpeers;
 
-	for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) {
-		/* we might have to unbind some peers sections from some processes */
-		for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
-			if (!curpeers->peers_fe)
-				continue;
+	/* we might have to unbind some peers sections from some processes */
+	for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
+		if (!curpeers->peers_fe)
+			continue;
 
-			stop_proxy(curpeers->peers_fe);
-			/* disable this peer section so that it kills itself */
-			signal_unregister_handler(curpeers->sighandler);
-			task_delete(curpeers->sync_task);
-			task_free(curpeers->sync_task);
-			curpeers->sync_task = NULL;
-			task_free(curpeers->peers_fe->task);
-			curpeers->peers_fe->task = NULL;
-			curpeers->peers_fe = NULL;
-		}
+		stop_proxy(curpeers->peers_fe);
+		/* disable this peer section so that it kills itself */
+		signal_unregister_handler(curpeers->sighandler);
+		task_delete(curpeers->sync_task);
+		task_free(curpeers->sync_task);
+		curpeers->sync_task = NULL;
+		task_free(curpeers->peers_fe->task);
+		curpeers->peers_fe->task = NULL;
+		curpeers->peers_fe = NULL;
+	}
 
 		list_for_each_entry_safe(l, l_next, &curproxy->conf.listeners, by_fe) {
 			/* does not close if the FD is inherited with fd@