[Smart Lock] Remove unnecessary string duplication for autosign in smart lock UI.

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 263 matching lines @@
       <!-- Save passwords preferences -->
       <message name="IDS_PREFS_SAVED_PASSWORDS" desc="Title for the Saved Passwords preferences. [CHAR-LIMIT=32]">
         Save passwords
       </message>
       <message name="IDS_PREFS_SMART_LOCK_FOR_PASSWORDS" desc="The brand name of the password manager to be displayed in preferences instead of the title 'Save Passwords' when a user is signed in. [CHAR-LIMIT=32]">
         Smart Lock for Passwords
       </message>
       <message name="IDS_PASSWORDS_AUTO_SIGNIN_TITLE" desc="Title for checkbox to enable automatically signing the user in to websites">
         Auto Sign-in
       </message>
-      <message name="IDS_PASSWORDS_AUTO_SIGNIN_MESSAGE" desc="Message shown when the user is automatically signed in to a website">
-        Signed in as <ph name="USERNAME">%1$s<ex>don.john.lemon@gmail.com</ex></ph>
-      </message>
       <message name="IDS_PASSWORDS_AUTO_SIGNIN_DESCRIPTION" desc="Text under 'Auto sign-in' checkbox">
         Automatically sign in to websites using stored credentials. When the feature is off, you'll be asked for verification every time before signing in to a website.
       </message>
       <message name="IDS_SECTION_SAVED_PASSWORDS" desc="Header for the list of passwords that have been saved in Chrome. [CHAR-LIMIT=32]">
         Passwords
       </message>
       <message name="IDS_SECTION_SAVED_PASSWORDS_EXCEPTIONS" desc="Header for the list of websites for which user selected to never save passwords. [CHAR-LIMIT=32]">
         Never saved
       </message>
       <message name="IDS_MANAGE_PASSWORDS_TEXT" desc="Text for link to manage passwords on Account Central.">
@@ skipping 1952 matching lines @@
       </message>
       <message name="IDS_HELP_CONTEXT_USAGE_REPORTS" translateable="false">
         send_crash_report
       </message>
       <message name="IDS_HELP_CONTEXT_SAD_TAB" translateable="false">
         mobile_awsnap
       </message>
     </messages>
   </release>
 </grit>