[Extensions] Remove "show button" UI from chrome://extensions

chrome/app/generated_resources.grd

 <?xml version="1.0" encoding="utf-8"?>
 
 <!--
 This file contains definitions of resources that will be translated for each
 locale.  The variables is_win, is_macosx, is_linux, and is_posix are available
 for making strings OS specific.  Other platform defines such as use_titlecase
 are declared in build/common.gypi.
 -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
@@ skipping 4184 matching lines @@
         </if>
         <message name="IDS_EXTENSIONS_OPTIONS_LINK" desc="The link text for the Options link.">
           Options
         </message>
         <message name="IDS_EXTENSIONS_PERMISSIONS_LINK" desc="The link text for the Permissions link.">
           Permissions
         </message>
         <message name="IDS_EXTENSIONS_INFO_LINK" desc="The text for the link that opens the App Info dialog for the extension, displaying permissions and other useful information about the app.">
           Details
         </message>
-        <message name="IDS_EXTENSIONS_SHOW_BUTTON" desc="The text for the Show link.">
-          Show button
-        </message>
         <message name="IDS_EXTENSIONS_LOG_LEVEL_INFO" desc="Alt-text indicating a low severity level for the error icon in the chrome://extensions page.">
           Log
         </message>
         <message name="IDS_EXTENSIONS_LOG_LEVEL_WARN" desc="Alt-text indicating a medium severity level for the error icon in the chrome://extensions page.">
           Warning
         </message>
         <message name="IDS_EXTENSIONS_LOG_LEVEL_ERROR" desc="Alt-text indicating a high severity level for the error icon in the chrome://extensions page.">
           Error
         </message>
         <message name="IDS_MD_EXTENSIONS_DEVELOPER_MODE" desc="The text displayed next to the checkbox to toggle developer mode in the extensions page.">
@@ skipping 8054 matching lines @@
       Your downloads appear here
     </message>
 
     <!-- Automation info bar -->
     <message name="IDS_CONTROLLED_BY_AUTOMATION" desc="Message shown when the browser session is being controlled by an automated test.">
       Chrome is being controlled by automated test software.
     </message>
   </messages>
  </release>
 </grit>