Delete MDNS binder test NsdService switched from Netd native solution to Java solution from Android U. MDNS in netd is going to be removed. Bug: 298594687 Test: atest netd_integration_test (cherry picked from https://android-review.googlesource.com/q/commit:d9e436e6329f57ca40c28791e53ac4447ba59731) Merged-In: I4cdc484c35fa184c3e5dd5812307ad1714571807 Change-Id: I4cdc484c35fa184c3e5dd5812307ad1714571807