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

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 2133d70c05d1053b382c8aadae702281e4dcf936..7b3e1557147e645586a0d6004b8b0a7a06b9a040 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -4202,9 +4202,6 @@ From <ph name="DOWNLOAD_DOMAIN">$3<ex>example.com</ex></ph>
         <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>