Revert "[mdns] support regsitering hosts in NsdPublisher"

Revert submission 2943805-nsdpublisher-publish-host

Reason for revert: Test failures: b/328384504

Reverted changes: /q/submissionid:2943805-nsdpublisher-publish-host

Change-Id: I5919fea68cae0d3817319994f43eb47e912f9157
6 files changed