Remove unused "Website Settings" view of content settings

chrome/browser/resources/options/browser_options.html

 <div id="settings" class="page" hidden>
   <header>
     <h1 i18n-content="settingsTitle"></h1>
   </header>
   <include src="reset_profile_settings_banner.html">
   <include src="automatic_settings_reset_banner.html">
 <if expr="chromeos">
   <link rel="import" href="chrome://resources/cr_elements/cr_network_icon/cr_network_icon.html">
   <link rel="import" href="chrome://resources/cr_elements/cr_onc/cr_onc_data.html">
   <include src="secondary_user_banner.html">
@@ skipping 95 matching lines @@
   <section>
     <h3 i18n-content="sectionTitleDevice"></h3>
     <div>
       <span i18n-content="deviceGroupDescription"></span>
       <div class="settings-row" id="battery" hidden>
         <div id="battery-icon" hidden></div>
         <span id="battery-status"></span>
         <a is="action-link" id="power-settings-button"
             i18n-content="powerSettingsButton"></a>
       </div>
-      <div class="settings-row">
-        <button id="battery-button" i18n-content="batteryButton"></button>
-        <button id="stored-data-button" i18n-content="storageButton"></button>
-      </div>
       <div id="touchpad-settings" class="settings-row" hidden>
         <span class="option-name" i18n-content="touchpadSpeed"></span>
         <input id="touchpad-sensitivity-range" type="range" min="1" max="5"
             pref="settings.touchpad.sensitivity2" class="touch-slider">
       </div>
       <div id="mouse-settings" class="settings-row" hidden>
         <span class="option-name" i18n-content="mouseSpeed"></span>
         <input id="mouse-sensitivity-range" type="range" min="1" max="5"
             pref="settings.mouse.sensitivity2" class="touch-slider">
       </div>
@@ skipping 481 matching lines @@
           </label>
         </div>
       </div>
       <button id="easy-unlock-turn-off-button"
           i18n-content="easyUnlockTurnOffButton"></button>
     </div>
   </section>
   <section id="web-content-section">
     <h3 i18n-content="advancedSectionTitleContent"></h3>
     <div>
-      <div id="website-settings-section" class="settings-row" hidden>
-        <button id="website-management-button"
-            i18n-content="websitesManage"></button>
-      </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>
             <option value="12" i18n-content="fontSizeLabelSmall"></option>
             <option value="16" i18n-content="fontSizeLabelMedium"></option>
             <option value="20" i18n-content="fontSizeLabelLarge"></option>
             <option value="24" i18n-content="fontSizeLabelVeryLarge">
@@ skipping 380 matching lines @@
       </button>
     </div>
   </section>
   </div>  <!-- advanced-settings-container -->
   </div>  <!-- advanced-settings -->
   <footer id="advanced-settings-footer">
     <a is="action-link" id="advanced-settings-expander"
         i18n-content="showAdvancedSettings"></a>
   </footer>
 </div>