Revert of [NaCl SDK] nacl_io: Add support for basic socketpairs.

native_client_sdk/src/libraries/nacl_io/socket/unix_node.h

Index: native_client_sdk/src/libraries/nacl_io/socket/unix_node.h
diff --git a/native_client_sdk/src/libraries/nacl_io/socket/unix_node.h b/native_client_sdk/src/libraries/nacl_io/socket/unix_node.h
deleted file mode 100644
index c8b7f30d1d2369636e7b9497e73e7ca3dcc08de8..0000000000000000000000000000000000000000
--- a/native_client_sdk/src/libraries/nacl_io/socket/unix_node.h
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright 2015 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.
-
-#ifndef LIBRARIES_NACL_IO_SOCKET_UNIX_NODE_H_
-#define LIBRARIES_NACL_IO_SOCKET_UNIX_NODE_H_
-
-#include "nacl_io/ossocket.h"
-#ifdef PROVIDES_SOCKET_API
-
-#include "nacl_io/node.h"
-#include "nacl_io/socket/socket_node.h"
-#include "nacl_io/socket/unix_event_emitter.h"
-
-namespace nacl_io {
-
-class UnixNode : public SocketNode {
- public:
-  explicit UnixNode(Filesystem* filesystem);
-  UnixNode(Filesystem* filesystem, const UnixNode& peer);
-
-  virtual EventEmitter* GetEventEmitter();
-
- protected:
-  virtual Error Recv_Locked(void* buffer,
-                            size_t len,
-                            PP_Resource* out_addr,
-                            int* out_len);
-  virtual Error Send_Locked(const void* buffer,
-                            size_t len,
-                            PP_Resource addr,
-                            int* out_len);
-  virtual Error RecvFrom(const HandleAttr& attr,
-                         void* buf,
-                         size_t len,
-                         int flags,
-                         struct sockaddr* src_addr,
-                         socklen_t* addrlen,
-                         int* out_len);
-  virtual Error Send(const HandleAttr& attr,
-                     const void* buf,
-                     size_t len,
-                     int flags,
-                     int* out_len);
-  virtual Error SendTo(const HandleAttr& attr,
-                       const void* buf,
-                       size_t len,
-                       int flags,
-                       const struct sockaddr* dest_addr,
-                       socklen_t addrlen,
-                       int* out_len);
-
- private:
-  ScopedUnixEventEmitter emitter_;
-};
-
-}  // namespace nacl_io
-
-#endif  // PROVIDES_SOCKET_API
-#endif  // LIBRARIES_NACL_IO_SOCKET_UNIX_NODE_H_