Remove backoff criteria: it never kicked in

It never kicked in since we are never returning a retry() Result, but always either success() or failure() (see createWork() function). Also, there is already a default (exponential backoff starting from 30 seconds), so no need to override it.

app/src/main/java/org/schabi/newpipe/local/feed/notifications/NotificationWorker.kt

@@ -132,7 +132,6 @@ class NotificationWorker(
                 TimeUnit.MILLISECONDS
             ).setConstraints(constraints)
                 .addTag(WORK_TAG)
-                .setBackoffCriteria(BackoffPolicy.LINEAR, 30, TimeUnit.MINUTES)
                 .build()
 
             WorkManager.getInstance(context)