Don't show yellow section informing about minimum_auto_refresh_interval if it is set to 1s.

[luk-kaminski]

Don't show yellow section informing about minimum_auto_refresh_interval if it is set to 1s.

Expected Behavior

If minimum_auto_refresh_interval is set to 1s, it means that all options are legal and there is no reason to warn a user.
Also, it reveals an information about a property which was not meant to be used by GL Open clients at all and gives a false impression we should document this property.

Current Behavior

What was found by Brian Winstead - If minimum_auto_refresh_interval is set to 1s, we get:

Steps to Reproduce (for bugs)

1. System/Configurations/Search
2. Press Edit configuration
3. Scroll to the bottom.

Your Environment

• Graylog Version: 6.0