Revert "add osmo-mslookup-client program"

This reverts commit 637bbfcd9275f8c47212b29b50110f56ba6397bf, as it
is a follow-up commit to Change-Id I03a0ffa1d4dc1b24ac78a5ad0975bca90a49c728
which causes all OBS osmo-hlr builds to fail in the mslookup_client_mdns test.

Change-Id: I43084ac3b24684f17df43fefc82019e44baaa236
8 files changed