Delete Line(Key Bindings-Deletions-Delete Line) is a very useful shortcut, but when I update my xcode to 9.0(9A235) it does not take effect. Why?

Delete Line(Key Bindings-Deletions-Delete Line) is a very useful shortcut, but when I update my xcode to 9.0(9A235) it does not take effect. Why?

Apple fixed KeyBindings in new Xcode 9.1 beta.
Now it works in a stable version of Xcode 9.1