diff --git a/XLForm/XL/Controllers/XLFormViewController.m b/XLForm/XL/Controllers/XLFormViewController.m
index 3ed72060..3558d11d 100755
--- a/XLForm/XL/Controllers/XLFormViewController.m
+++ b/XLForm/XL/Controllers/XLFormViewController.m
@@ -105,11 +105,6 @@ -(instancetype)initWithCoder:(NSCoder *)aDecoder
 
 - (void)dealloc
 {
-    NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
-    [nc removeObserver:self name:UIContentSizeCategoryDidChangeNotification object:nil];
-    [nc removeObserver:self name:UIKeyboardWillShowNotification object:nil];
-    [nc removeObserver:self name:UIKeyboardWillHideNotification object:nil];
-    
     self.tableView.delegate = nil;
     self.tableView.dataSource = nil;