Revert of Make Hands-Off Zero-Touch Enrollment compatibile with tests

chrome/browser/chromeos/login/wizard_controller.h

Index: chrome/browser/chromeos/login/wizard_controller.h
diff --git a/chrome/browser/chromeos/login/wizard_controller.h b/chrome/browser/chromeos/login/wizard_controller.h
index c0283c5a0af0d61a9a9f3d6f219c4adaa7af6ef0..aafbec4a63876c5fe1fc59b33f6d3e0b9c3d3325 100644
--- a/chrome/browser/chromeos/login/wizard_controller.h
+++ b/chrome/browser/chromeos/login/wizard_controller.h
@@ -84,10 +84,6 @@
   // Skips any screens that may normally be shown after login (registration,
   // Terms of Service, user image selection).
   static void SkipPostLoginScreensForTesting();
-
-  // Returns true if OOBE is operating under the
-  // Zero-Touch Hands-Off Enrollment Flow.
-  static bool UsingHandsOffEnrollment();
 
   // Shows the first screen defined by |first_screen| or by default if the
   // parameter is empty.