Improve wording

Signed-off-by: Joas Schilling <coding@schilljs.com>

lib/private/Notification/Manager.php

@@ -308,8 +308,7 @@ class Manager implements IManager {
 			/**
 			 * We want to keep offering our push notification service for free, but large
 			 * users overload our infrastructure. For this reason we have to rate-limit the
-			 * use of push notifications. If you need this feature, consider setting up your
-			 * own push server or using Nextcloud Enterprise.
+			 * use of push notifications. If you need this feature, consider using Nextcloud Enterprise.
 			 */
 			// TODO Remove time check after 1st March 2022
 			$isFairUse = $this->timeFactory->getTime() < 1646089200

lib/public/Notification/IManager.php

@@ -113,8 +113,7 @@ interface IManager extends IApp, INotifier {
 	 *
 	 * We want to keep offering our push notification service for free, but large
 	 * users overload our infrastructure. For this reason we have to rate-limit the
-	 * use of push notifications. If you need this feature, consider setting up your
-	 * own push server or using Nextcloud Enterprise.
+	 * use of push notifications. If you need this feature, consider using Nextcloud Enterprise.
 	 *
 	 * @since 23.0.0
 	 */