Revert of [Merge to M58] cros: Treat set rotation for chrome.system.display API in touchview mode as if user …

ash/display/screen_orientation_controller_chromeos.h

Index: ash/display/screen_orientation_controller_chromeos.h
diff --git a/ash/display/screen_orientation_controller_chromeos.h b/ash/display/screen_orientation_controller_chromeos.h
index d37cb80cbae74d0cf6c362bf0758fd4b01d9bba4..2db2070588d7790266f8d78d63529362d776a34a 100644
--- a/ash/display/screen_orientation_controller_chromeos.h
+++ b/ash/display/screen_orientation_controller_chromeos.h
@@ -79,9 +79,6 @@
   // user rotation lock.
   void ToggleUserRotationLock();
 
-  // Set locked to the given |rotation| and save it.
-  void SetLockToRotation(display::Display::Rotation rotation);
-
   // WmActivationObserver:
   void OnWindowActivated(WmWindow* gained_active,
                          WmWindow* lost_active) override;
@@ -111,9 +108,6 @@
                           display::Display::RotationSource source);
 
   void SetRotationLockedInternal(bool rotation_locked);
-
-  // A helper method that set locked to the given |orientation| and save it.
-  void SetLockToOrientation(blink::WebScreenOrientationLockType orientation);
 
   // Sets the display rotation to |rotation|. Future accelerometer updates
   // should not be used to change the rotation. SetRotationLocked(false) removes