function normalizePlatformVersion(version) {
  if (UserAgentData.platformName === 'Windows') {
    return version.replace(/^\s*NT/, '');
  }

  return version;
}
Normalizes `version` by stripping any "NT" prefix, but only on the Windows
platform.

Mimics the stripping performed by the `UserAgentWindowsPlatform` PHP class.

@param {string} version
@return {string}