EDK: Remove MOJO_SYSTEM_IMPL_EXPORT, system_impl_export.h, etc.

mojo/edk/embedder/process_type.h

 // 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 MOJO_EDK_EMBEDDER_PROCESS_TYPE_H_
 #define MOJO_EDK_EMBEDDER_PROCESS_TYPE_H_
 
 #include <ostream>
 
-#include "mojo/edk/system/system_impl_export.h"
-
 namespace mojo {
 namespace embedder {
 
 enum class ProcessType {
   // |InitIPCSupport()| has not been called (or |ShutdownIPCSupport()| has been
   // called).
   UNINITIALIZED,
   // Process without connection management.
   NONE,
   // Master process.
   MASTER,
   // Slave process.
   SLAVE,
 };
 
 // So logging macros and |DCHECK_EQ()|, etc. work.
-MOJO_SYSTEM_IMPL_EXPORT inline std::ostream& operator<<(
-    std::ostream& out,
-    ProcessType process_type) {
+inline std::ostream& operator<<(std::ostream& out, ProcessType process_type) {
   return out << static_cast<int>(process_type);
 }
 
 }  // namespace embedder
 }  // namespace mojo
 
 #endif  // MOJO_EDK_EMBEDDER_PROCESS_TYPE_H_