clear code

iOSClient/Settings/CCAdvanced.m

@@ -361,7 +361,7 @@
         [appDelegate.netQueue cancelAllOperations];
     }
     
-    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 1 * NSEC_PER_SEC),dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
+    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 0.5 * NSEC_PER_SEC),dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
         
         [[NSFileManager defaultManager] removeItemAtPath:[CCUtility getDirectoryProviderStorage] error:nil];
         [[NSFileManager defaultManager] removeItemAtPath:[CCUtility getDirectoryUserData] error:nil];