Revert openhab#1428 (openhab#1436)

Signed-off-by: Jerome Luckenbach <[email protected]>

Author: Confectrician

configuration/restdocs.md

@@ -87,19 +87,6 @@ To authenticate with an API token, **apaddpend `-u '{API_TOKEN}:'` to the comman
 
 You can manage all access tokens in your profile settings in the Main UI.
 
-### Disable authentication
-
-It is possible to disable authentication.
-Stop openhab and add this part to ```$OPENHAB_USERDATA/etc/org.apache.karaf.features.xml``` before ```</featuresProcessing>```:
-
-```xml
-    <blacklistedFeatures>
-        <feature>openhab-*-auth</feature>
-    </blacklistedFeatures>
-```
-
-Once openhab is restarted authentication will be disabled.
-
 ## Additional Considerations
 
 The REST API also supports server-push supporting subscriptions on change notification for certain resources.