Checkmk Werk 12904: mrpe: Always display age of cached results

ID: 12904 Title: mrpe: Always display age of cached results Component: Checks & agents Level: 1 Class: New feature Version: 2.1.0i1 The information about the age of cached agent data for mrpe based services is now always displayed in the same manner as for local check based services. Previously, users had to configure this with the `interval` option in the mrpe config file. This option has no effect anymore.