BREAKING CHANGE: xDnsServerSetting: Remove properties `DsPollingInterval` and `DsTombstoneInterval`

[johlju]

Details of the scenario you tried and the problem that is occurring

Suggest removing the properties DsPollingInterval and DsTombstoneInterval from the resource xDnsServerSetting to avoid ping-pong behavior. Instead those should be enforced by the resource DnsServerDsSetting.

Verbose logs showing the problem

n/a

Suggested solution to the issue

See above. Related to issue #251.

The DSC configuration that is used to reproduce the issue (as detailed as possible)

n/a

The operating system the target node is running

Any Windows

Version and build of PowerShell the target node is running

Windows PowerShell

Version of the DSC module that was used

3.0.0 preview