Revert of [screen-orientation] Update implementation to match recent spec changes.

Source/modules/screen_orientation/ScreenScreenOrientation.idl

Index: Source/modules/screen_orientation/ScreenScreenOrientation.idl
diff --git a/Source/modules/screen_orientation/ScreenScreenOrientation.idl b/Source/modules/screen_orientation/ScreenScreenOrientation.idl
deleted file mode 100644
index 2905343b8eb2fe3ae71e86e6da27057d495929a7..0000000000000000000000000000000000000000
--- a/Source/modules/screen_orientation/ScreenScreenOrientation.idl
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2014 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.
-
-[
-    RuntimeEnabled=ScreenOrientation
-] partial interface Screen {
-    [CallWith=ScriptState] readonly attribute ScreenOrientation orientation;
-};