[fenix] Ignore and remove recently_saved_show_all unused resource

app/src/main/res/values/strings.xml

@@ -41,7 +41,7 @@
     <!-- Content description for the recently saved bookmarks section on the home screen. -->
     <string moz:removedIn="100" name="recently_saved_bookmarks_content_description" tools:ignore="UnusedResources">Recently saved bookmarks</string>
     <!-- Title for the button which navigates the user to show all of their saved bookmarks. -->
-    <string name="recently_saved_show_all">Show all</string>
+    <string name="recently_saved_show_all" moz:removedIn="101" tools:ignore="UnusedResources">Show all</string>
     <!-- Content description for the button which navigates the user to show all of their saved bookmarks. -->
     <string name="recently_saved_show_all_content_description_2">Show all saved bookmarks</string>
     <!-- Text for the menu button to remove a recently saved bookmark from the user's home screen -->