EDK: Remove MOJO_SYSTEM_IMPL_EXPORT, system_impl_export.h, etc.

mojo/edk/system/handle_signals_state.h

 // 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.
 
 #ifndef MOJO_EDK_SYSTEM_HANDLE_SIGNALS_STATE_H_
 #define MOJO_EDK_SYSTEM_HANDLE_SIGNALS_STATE_H_
 
-#include "mojo/edk/system/system_impl_export.h"
 #include "mojo/public/c/system/types.h"
 
 namespace mojo {
 namespace system {
 
 // Just "add" some constructors and methods to the C struct
 // |MojoHandleSignalsState| (for convenience). This should add no overhead.
-struct MOJO_SYSTEM_IMPL_EXPORT HandleSignalsState final
-    : public MojoHandleSignalsState {
+struct HandleSignalsState final : public MojoHandleSignalsState {
   HandleSignalsState() {
     satisfied_signals = MOJO_HANDLE_SIGNAL_NONE;
     satisfiable_signals = MOJO_HANDLE_SIGNAL_NONE;
   }
   HandleSignalsState(MojoHandleSignals satisfied,
                      MojoHandleSignals satisfiable) {
     satisfied_signals = satisfied;
     satisfiable_signals = satisfiable;
   }
 
@@ skipping 12 matching lines @@
 
   // (Copy and assignment allowed.)
 };
 static_assert(sizeof(HandleSignalsState) == sizeof(MojoHandleSignalsState),
               "HandleSignalsState should add no overhead");
 
 }  // namespace system
 }  // namespace mojo
 
 #endif  // MOJO_EDK_SYSTEM_HANDLE_SIGNALS_STATE_H_