Remove single bookmark widget.

chrome/android/java/strings/android_chrome_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!-- android_chrome_strings.grd contains strings for Chrome for Android.
 
 FAQ:
   - How do I add, change, or remove a string?
       Just update this file.
   - Translations will happen automatically??
       Yes, indeed. Just add your string before the branch point and
       make the description good.
@@ skipping 1997 matching lines @@
       <message name="IDS_BOOKMARK_FOLDER_TREE_ERROR" desc="Error shown when loading the bookmark folder hierarchy fails. [CHAR-LIMIT=45]">
         Error loading folders
       </message>
       <message name="IDS_NO_BOOKMARK_FOLDERS" desc="Label shown when no bookmark folders exist. [CHAR-LIMIT=45]">
         No bookmark folders
       </message>
       <message name="IDS_INVALID_BOOKMARK" desc="Error shown when attempting to edit a bookmark that no longer exist.">
         Bookmark no longer exists. Please refresh.
       </message>
 
-      <!-- Choose bookmark activity -->
-      <message name="IDS_BOOKMARK_SHORTCUT_NAME" desc="Name of the bookmark shortcut. [CHAR-LIMIT=32]">
-        Bookmark
-      </message>
-      <message name="IDS_BOOKMARK_SHORTCUT_CHOOSE_BOOKMARK" desc="Title shown in the bookmark shortcut UI to choose a bookmark. [CHAR-LIMIT=32]">
-        Choose a bookmark
-      </message>
-
       <!-- Voice search -->
       <message name="IDS_VOICE_SEARCH_ERROR" desc="Toast when the voice search activity couldn't be started. [CHAR-LIMIT=40]">
         No enabled voice search available
       </message>
 
       <message name="IDS_OPEN_IN_NEW_TAB_TOAST" desc="Toast displayed after a tab is opened in the background on a low end device.">
         Tab opened in background.
       </message>
       <message name="IDS_CONTEXTMENU_COPY_URL" desc="Context menu item for copying the url for query in the omnibox. [CHAR-LIMIT=30]">
         Copy url
@@ skipping 253 matching lines @@
         Nearby URLs
       </message>
       <message name="IDS_PHYSICAL_WEB_NOTIFICATION_TITLE" desc="Description of quantity of discovered URLs nearby.">
         {NUM_URLS, plural,
          =1 {1 URL nearby}
          other {# URLs nearby}}
       </message>
     </messages>
   </release>
 </grit>