Noop changes to suppress compile-time warnings in WINDOWS code paths.

include/gtest/internal/gtest-port.h

@@ -2317,6 +2317,7 @@ inline const char* StrError(int errnum) { return strerror(errnum); }
 inline const char* GetEnv(const char* name) {
 #if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE | GTEST_OS_WINDOWS_RT
   // We are on Windows CE, which has no environment variables.
+  static_cast<void>(name);  // To prevent 'unused argument' warning.
   return NULL;
 #elif defined(__BORLANDC__) || defined(__SunOS_5_8) || defined(__SunOS_5_9)
   // Environment variables which we programmatically clear will be set to the