Revert "Move mojo edk into mojo/edk"

mojo/edk/system/system_impl_export.h

Index: mojo/edk/system/system_impl_export.h
diff --git a/mojo/edk/system/system_impl_export.h b/mojo/edk/system/system_impl_export.h
deleted file mode 100644
index 5bbf0057b0dc571b115e6cf117203aa825f141b1..0000000000000000000000000000000000000000
--- a/mojo/edk/system/system_impl_export.h
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright 2013 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 MOJO_EDK_SYSTEM_SYSTEM_IMPL_EXPORT_H_
-#define MOJO_EDK_SYSTEM_SYSTEM_IMPL_EXPORT_H_
-
-#if defined(COMPONENT_BUILD)
-#if defined(WIN32)
-
-#if defined(MOJO_SYSTEM_IMPL_IMPLEMENTATION)
-#define MOJO_SYSTEM_IMPL_EXPORT __declspec(dllexport)
-#else
-#define MOJO_SYSTEM_IMPL_EXPORT __declspec(dllimport)
-#endif  // defined(MOJO_SYSTEM_IMPL_IMPLEMENTATION)
-
-#else  // defined(WIN32)
-#if defined(MOJO_SYSTEM_IMPL_IMPLEMENTATION)
-#define MOJO_SYSTEM_IMPL_EXPORT __attribute__((visibility("default")))
-#else
-#define MOJO_SYSTEM_IMPL_EXPORT
-#endif
-#endif
-
-#else  // defined(COMPONENT_BUILD)
-#define MOJO_SYSTEM_IMPL_EXPORT
-#endif
-
-#endif  // MOJO_EDK_SYSTEM_SYSTEM_IMPL_EXPORT_H_