[Open Screen] Replace mDNSResponder.

This replaces the mDNSResponder-based publisher implementation in OSP
with the the Open Screen Library's dnssd module.

third_party/mDNSResponder is removed as well as all of the glue/support
code.

Caveats:
- The OSP listener is not ported to dnssd, that will be done in a future
  change.
- Resuming the publisher after Suspend() does not seem to be working
  yet.
- The publisher configuration hostname is not used by dnssd.

Bug: b/174207562
Change-Id: I9c7a6339a0f405550effc33ad0d5b5a79fa8e919
Reviewed-on: https://chromium-review.googlesource.com/c/openscreen/+/2535076
Commit-Queue: mark a. foltz <mfoltz@chromium.org>
Reviewed-by: Ryan Keane <rwkeane@google.com>

1 files changed, 1 insertions, 14 deletions

diff --git a/BUILD.gn b/BUILD.gn
index 2744cfa8..95ab0c96 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -37,10 +37,6 @@ group("gn_all") {
       "osp/msgs",
     ]
 
-    if (use_mdns_responder) {
-      deps += [ "osp/impl/discovery/mdns:mdns_demo" ]
-    }
-
     if (use_chromium_quic) {
       deps += [
         "third_party/chromium_quic",
@@ -49,7 +45,7 @@ group("gn_all") {
       ]
     }
 
-    if (use_chromium_quic && use_mdns_responder) {
+    if (use_chromium_quic) {
       deps += [ "osp:osp_demo" ]
     }
   }
@@ -95,15 +91,6 @@ source_set("openscreen_unittests_all") {
       "osp:unittests",
       "osp/msgs:unittests",
     ]
-
-    if (use_mdns_responder) {
-      public_deps += [
-        "osp/impl/discovery/mdns:unittests",
-
-        # Currently this target only includes mDNS tests.
-        "osp/impl/testing:unittests",
-      ]
-    }
   }
 }