Revert "Add an accessibility notification when new suggestions are shown."

ios/chrome/app/strings/ios_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!--
 This file contains definition of resources that will be translated for each
 locale.  The variables is_win, is_macosx, is_linux, is_ios and is_posix are
 available for making strings OS specific.  Other platform defines such as
 use_titlecase are declared in build/common.gypi.
 
 The strings in this file are specific to iOS, thus is_ios will be true and
 all other OS specific variables will be false.
@@ skipping 117 matching lines @@
     <file path="resources/ios_strings_zh-CN.xtb" lang="zh-CN" />
     <file path="resources/ios_strings_zh-TW.xtb" lang="zh-TW" />
   </translations>
   <release seq="1" allow_pseudo="false">
     <messages fallback_to_english="true">
 
       <message name="IDS_IOS_PLATFORM_LABEL" desc="Label for Platform. [Length: unlimited] [iOS only]">
         Platform
       </message>
 
-      <message name="IDS_IOS_AUTOFILL_ACCNAME_SUGGESTIONS_AVAILABLE" desc="The description of the event provided when an accessibility notification is posted upon showing form suggestions. [Length: unlimited] [iOS only]">
-        Suggestions available
-      </message>
       <message name="IDS_IOS_AUTOFILL_ACCNAME_HIDE_KEYBOARD" desc="The accessible name for the hide keyboard button in the keyboard accessory shown when filling out forms. [Length: unlimited] [iOS only]">
         Hide keyboard
       </message>
       <message name="IDS_IOS_AUTOFILL_ACCNAME_NEXT_FIELD" desc="The accessible name for the next field button in the keyboard accessory shown when filling out forms. [Length: unlimited] [iOS only]">
         Next field
       </message>
       <message name="IDS_IOS_AUTOFILL_ACCNAME_PREVIOUS_FIELD" desc="The accessible name for the previous field button in the keyboard accessory shown when filling out forms. [Length: unlimited] [iOS only]">
         Previous field
       </message>
       <message name="IDS_IOS_AUTOFILL_ACCNAME_SUGGESTION" desc="The accessible description of a suggestion shown in the Autofill keyboard acessory. [Length: unlimited] [iOS only]">
@@ skipping 152 matching lines @@
       <!-- Accessibility labels -->
       <message name="IDS_IOS_ACCNAME_CLEAR_TEXT" desc="The accessibility label for the clear text button in the location bar [Length: unlimited].">
         Clear Text
       </message>
       <message name="IDS_IOS_ACCNAME_VOICE_SEARCH" desc="The accessibility label for the voice search button in the location bar [Length: unlimited]">
         Voice Search
       </message>
     </messages>
   </release>
 </grit>