[embedlite-components] Cleanup desktop notifications stuff from Conte…

…ntPermissionPrompt.js. Contributes to JB#50930

If the user denied or allowed the request, this will work in any case until the end of the session.
It is necessary to remove unnecessary things for desktop notification.

jscomps/ContentPermissionPrompt.js

@@ -70,9 +70,7 @@ ContentPermissionPrompt.prototype = {
       // If the user checked "Don't ask again", make a permanent exception
       if (ret.checkedDontAsk) {
         Services.perms.addFromPrincipal(request.principal, perm.type, Ci.nsIPermissionManager.ALLOW_ACTION);
-      } else if (entityName == "desktopNotification") {
-        // For notifications, it doesn't make sense to grant permission once. So when the user clicks allow,
-        // we let the requestor create notifications for the session.
+      } else {
         Services.perms.addFromPrincipal(request.principal, perm.type, Ci.nsIPermissionManager.ALLOW_ACTION,
                                         Ci.nsIPermissionManager.EXPIRE_SESSION);
       }