Use new Networking Model

Swap out the old networking model for the new one which uses the Network
Runner

Change-Id: Ic01d8f61bd61eeba227d88a01645a53fbf157e90
Reviewed-on: https://chromium-review.googlesource.com/c/openscreen/+/1708155
Commit-Queue: Ryan Keane <rwkeane@google.com>
Reviewed-by: Max Yakimakha <yakimakha@chromium.org>
Reviewed-by: Brandon Tolsch <btolsch@chromium.org>
Reviewed-by: mark a. foltz <mfoltz@chromium.org>
diff --git a/platform/impl/task_runner.h b/platform/impl/task_runner.h
index 084d628..eccee60 100644
--- a/platform/impl/task_runner.h
+++ b/platform/impl/task_runner.h
@@ -9,8 +9,7 @@
 #include <condition_variable>  // NOLINT
 #include <map>
 #include <memory>
-#include <mutex>   // NOLINT
-#include <thread>  // NOLINT
+#include <mutex>  // NOLINT
 #include <utility>
 #include <vector>