[mojo-edk] Remove ChildProcessLaunched that returns a pipe handle.

mojo/edk/embedder/embedder.cc

Index: mojo/edk/embedder/embedder.cc
diff --git a/mojo/edk/embedder/embedder.cc b/mojo/edk/embedder/embedder.cc
index 38c789cd7c46e48bbefb58de67533c54b5853c71..5d7e3455e11ed76862f4448947056a18c37c475d 100644
--- a/mojo/edk/embedder/embedder.cc
+++ b/mojo/edk/embedder/embedder.cc
@@ -37,12 +37,6 @@ Core* GetCore() { return g_core; }
 void SetMaxMessageSize(size_t bytes) {
 }
 
-ScopedPlatformHandle ChildProcessLaunched(base::ProcessHandle child_process) {
-  PlatformChannelPair channel;
-  ChildProcessLaunched(child_process, channel.PassServerHandle());
-  return channel.PassClientHandle();
-}
-
 void ChildProcessLaunched(base::ProcessHandle child_process,
                           ScopedPlatformHandle server_pipe) {
   CHECK(internal::g_core);