Restructure public side of network service.

mojo/services/public/interfaces/network/BUILD.gn

Index: mojo/services/public/interfaces/network/BUILD.gn
diff --git a/mojo/services/public/interfaces/network/BUILD.gn b/mojo/services/public/interfaces/network/BUILD.gn
deleted file mode 100644
index 1ce3591a80fea757271e3487f6c082005acac58c..0000000000000000000000000000000000000000
--- a/mojo/services/public/interfaces/network/BUILD.gn
+++ /dev/null
@@ -1,20 +0,0 @@
-# Copyright 2014 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-import("//mojo/public/tools/bindings/mojom.gni")
-
-mojom("network") {
-  sources = [
-    "cookie_store.mojom",
-    "net_address.mojom",
-    "network_error.mojom",
-    "network_service.mojom",
-    "tcp_bound_socket.mojom",
-    "tcp_connected_socket.mojom",
-    "tcp_server_socket.mojom",
-    "udp_socket.mojom",
-    "url_loader.mojom",
-    "web_socket.mojom",
-  ]
-}