Remove the managed banner from the Chrome settings UI

chrome/browser/resources/options/browser_options.html

 <div id="settings" class="page" hidden>
   <header>
     <h1 i18n-content="settingsTitle"></h1>
   </header>
 <if expr="not pp_ifdef('chromeos')">
   <include src="sync_section.html">
 </if>
 <if expr="pp_ifdef('chromeos')">
   <section>
     <h3 i18n-content="sectionTitleInternet"></h3>
@@ skipping 403 matching lines @@
       <label>
         <input id="password-generation-enabled" pref="password_generation.enabled"
             metric="Options_PasswordGenerationCheckbox" type="checkbox">
         <span i18n-content="passwordGenerationEnabledDescription"></span>
       </label>
     </div>
 <if expr="is_macosx">
     <div id="mac-passwords-warning" i18n-content="macPasswordsWarning" hidden>
     </div>
 </if>
-    <!-- This makes the managed-banner appear when the "pref" is configured by
-         the IT administrator. -->
-    <input name="password_allow_show_hidden" type="text"
-        pref="profile.password_manager_allow_show_passwords" hidden>
   </section>
   <section id="web-content-section">
     <h3 i18n-content="advancedSectionTitleContent"></h3>
     <div>
       <div class="settings-row">
         <label class="web-content-select-label">
           <span i18n-content="defaultFontSizeLabel"></span>
           <select id="defaultFontSize">
             <option value="9" i18n-content="fontSizeLabelVerySmall">
             </option>
@@ skipping 225 matching lines @@
   </section>
 </if>
 </div>  <!-- advanced-settings-container -->
 </div>  <!-- advanced-settings -->
 <footer>
   <button id="advanced-settings-expander" class="link-button"
       i18n-content="showAdvancedSettings">
   </button>
 </footer>
 </div>