Revert of Multiprocess test client: Android child process launcher rework.

base/test/android/multiprocess_test_client_service.h

Index: base/test/android/multiprocess_test_client_service.h
diff --git a/base/test/android/multiprocess_test_client_service.h b/base/test/android/multiprocess_test_client_service.h
deleted file mode 100644
index 99e8c8c923aa57b5d80c355785b37e9adaa72cd5..0000000000000000000000000000000000000000
--- a/base/test/android/multiprocess_test_client_service.h
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright 2016 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 BASE_TEST_ANDROID_MULTIPROCESS_TEST_CLIENT_SERVICE_H
-#define BASE_TEST_ANDROID_MULTIPROCESS_TEST_CLIENT_SERVICE_H
-
-#include "base/android/jni_android.h"
-
-namespace base {
-namespace android {
-
-bool RegisterMultiprocessTestClientServiceJni(JNIEnv* env);
-
-}  // namespace android
-}  // namespace base
-
-#endif  // BASE_TEST_ANDROID_MULTIPROCESS_TEST_CLIENT_SERVICE_H