Remove the managed banner from the Chrome settings UI

chrome/browser/resources/options/pref_ui.js

 // Copyright (c) 2012 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.
 
 cr.define('options', function() {
 
   var Preferences = options.Preferences;
 
   /**
    * Allows an element to be disabled for several reasons.
@@ skipping 47 matching lines @@
       // Listen for user events.
       this.addEventListener('change', this.handleChange_.bind(this));
 
       // Listen for pref changes.
       Preferences.getInstance().addEventListener(this.pref, function(event) {
         if (event.value.uncommitted && !self.dialogPref)
           return;
         self.updateStateFromPref_(event);
         updateDisabledState_(self, 'notUserModifiable', event.value.disabled);
         self.controlledBy = event.value.controlledBy;
-        OptionsPage.updateManagedBannerVisibility();
       });
     },
 
     /**
      * Handle changes to the input element's state made by the user. If a custom
      * change handler does not suppress it, a default handler is invoked that
      * updates the associated pref.
      * @param {Event} event Change event.
      * @private
      */
@@ skipping 403 matching lines @@
       // Listen for pref changes.
       // This element behaves like a normal button and does not affect the
       // underlying preference; it just becomes disabled when the preference is
       // managed, and its value is false. This is useful for buttons that should
       // be disabled when the underlying Boolean preference is set to false by a
       // policy or extension.
       Preferences.getInstance().addEventListener(this.pref, function(event) {
         updateDisabledState_(self, 'notUserModifiable',
                              event.value.disabled && !event.value.value);
         self.controlledBy = event.value.controlledBy;
-        OptionsPage.updateManagedBannerVisibility();
       });
     },
 
     /**
      * See |updateDisabledState_| above.
      */
     setDisabled: function(reason, disabled) {
       updateDisabledState_(this, reason, disabled);
     },
   };
@@ skipping 16 matching lines @@
     PrefCheckbox: PrefCheckbox,
     PrefNumber: PrefNumber,
     PrefRadio: PrefRadio,
     PrefRange: PrefRange,
     PrefSelect: PrefSelect,
     PrefTextField: PrefTextField,
     PrefButton: PrefButton
   };
 
 });