[CSS Typed OM] Delete obsolete number and length classes from Typed OM

third_party/WebKit/Source/core/css/cssom/CSSSkew.idl

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 [
-    Constructor(CSSAngleValue ax, CSSAngleValue ay),
+    Constructor(CSSNumericValue ax, CSSNumericValue ay),
     Exposed=(Window,PaintWorklet),
     RuntimeEnabled=CSSTypedOM
 ] interface CSSSkew : CSSTransformComponent {
-    readonly attribute CSSAngleValue ax;
-    readonly attribute CSSAngleValue ay;
+    readonly attribute CSSNumericValue ax;
+    readonly attribute CSSNumericValue ay;
 };