Get rid of the 'View comments on this item' menu option for photos.

It doesn't fit in with the others and as Jakob points out, the scroll
wheel on the mouse is perfectly sufficient.  I'll leave the icon around, though.

modules/comment/helpers/comment_menu.php

@@ -25,13 +25,4 @@ class comment_menu_Core {
                ->label(t("Comments"))
                ->url(url::site("admin/comments")));
   }
-
-  static function photo($menu, $theme) {
-    $menu
-      ->append(Menu::factory("link")
-               ->id("comments")
-               ->label(t("View comments on this item"))
-               ->url("#comments")
-               ->css_id("gCommentsLink"));
-  }
 }