cc/blimp: Remove the LayerTreeSettings serialization.

cc/trees/remote_channel_main.cc

Index: cc/trees/remote_channel_main.cc
diff --git a/cc/trees/remote_channel_main.cc b/cc/trees/remote_channel_main.cc
index 4487d094a0267fbc8b028557d3d189d3ca3e07f1..5f28a2f1442b431eb270022258da7a21c059b4d5 100644
--- a/cc/trees/remote_channel_main.cc
+++ b/cc/trees/remote_channel_main.cc
@@ -233,11 +233,6 @@ void RemoteChannelMain::SynchronouslyInitializeImpl(
   proto::CompositorMessageToImpl* to_impl_proto = proto.mutable_to_impl();
   to_impl_proto->set_message_type(
       proto::CompositorMessageToImpl::INITIALIZE_IMPL);
-  proto::InitializeImpl* initialize_impl_proto =
-      to_impl_proto->mutable_initialize_impl_message();
-  proto::LayerTreeSettings* settings_proto =
-      initialize_impl_proto->mutable_layer_tree_settings();
-  layer_tree_host->settings().ToProtobuf(settings_proto);
 
   VLOG(1) << "Sending initialize message to client";
   SendMessageProto(proto);