Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1576367
Description of problem:
Satellite 6.4 introduced RSS feed functionality to display community news in the notification area. The feed itself is configurable in Administer -> Settings menu, Notification tab, where it can be disabled. But even if disabled, the "Community" category is still present in the notification drawer.

Version-Release number of selected component (if applicable):
Satellite 6.4 Snap 2

How reproducible:
always

Steps to Reproduce:
1. Have the RSS feed enabled, and the "Community" category with a few items in the notification drawer.
2. Disable the RSS feed in Administer->Settings->Notifications
3. Check the notification drawer

Actual results:
The "Community" category still present.

Expected results:
The "Community" category disappears from the notification drawer.

Additional info:
Given some time (in order of hours), the "Community" category finally disappears. I understand that the RSS feed is checked every 12 hours, and probably the task finds that it was disabled at that time, and removes the feed from the notification drawer. Despite this, I think it will be confusing for the user, if he disables the RSS, and it is still present for a rather long time.