Delete unused code from systeminfo.

webrtc/base/systeminfo.h

-/*
- *  Copyright 2008 The WebRTC Project Authors. All rights reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#ifndef WEBRTC_BASE_SYSTEMINFO_H__
-#define WEBRTC_BASE_SYSTEMINFO_H__
-
-#include <string>
-
-#include "webrtc/base/basictypes.h"
-
-namespace rtc {
-
-class SystemInfo {
- public:
-  enum Architecture {
-    SI_ARCH_UNKNOWN = -1,
-    SI_ARCH_X86 = 0,
-    SI_ARCH_X64 = 1,
-    SI_ARCH_ARM = 2
-  };
-
-  SystemInfo();
-
-  // The number of CPU Threads in the system.
-  static int GetMaxCpus();
-  // The number of CPU Threads currently available to this process.
-  static int GetCurCpus();
-  // Identity of the CPUs.
-  Architecture GetCpuArchitecture();
-  std::string GetCpuVendor();
-  // Total amount of physical memory, in bytes.
-  int64_t GetMemorySize();
-  // The model name of the machine, e.g. "MacBookAir1,1"
-  std::string GetMachineModel();
-
- private:
-  static int logical_cpus_;
-};
-
-}  // namespace rtc
-
-#endif  // WEBRTC_BASE_SYSTEMINFO_H__