Remove source from crash-reporter and crash-dumper as they are no longer necessary.

system_logging_mock.cc

-// Copyright (c) 2010 The Chromium OS 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 <stdarg.h>
-
-#include "base/string_util.h"
-#include "crash/system_logging_mock.h"
-
-void SystemLoggingMock::LogInfo(const char *format, ...) {
-  va_list vl;
-  va_start(vl, format);
-  log_ += ident_ + "info: ";
-  StringAppendV(&log_, format, vl);
-  log_ += "\n";
-  va_end(vl);
-}
-
-void SystemLoggingMock::LogWarning(const char *format, ...) {
-  va_list vl;
-  va_start(vl, format);
-  log_ += ident_ + "warning: ";
-  StringAppendV(&log_, format, vl);
-  log_ += "\n";
-  va_end(vl);
-}
-
-void SystemLoggingMock::LogError(const char *format, ...) {
-  va_list vl;
-  va_start(vl, format);
-  log_ += ident_ + "error: ";
-  StringAppendV(&log_, format, vl);
-  log_ += "\n";
-  va_end(vl);
-}