Removal of legacy selfcheck interface

The legacy selfcheck interface is no longer included in Evergreen as of this release.

This interface was formerly located at a URL ending in extras/selfcheck/selfcheck.xml

No attempt is made at upgrade time to automatically remove this interface.

It is recommended that you remove this interface and its associated configuration after performing an upgrade:

(paths relative to Evergreen web root)

You can also remove the related Apache configuration block starting with:

<LocationMatch .*/selfcheck.xml>