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

base/test/main_stub.cc

Index: base/test/main_stub.cc
diff --git a/base/test/main_stub.cc b/base/test/main_stub.cc
deleted file mode 100644
index c4bcb1a8684cfaac1f9017f94d1418ffbce5a223..0000000000000000000000000000000000000000
--- a/base/test/main_stub.cc
+++ /dev/null
@@ -1,12 +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.
-
-#include "base/logging.h"
-
-int main(int argc, char** argv) {
-  // This is used so we can link with base:test_support even for components that
-  // don't have a main function.
-  NOTREACHED();
-  return 1;
-}