remove unused test method
remove unused test method

SaschaNaz/TypeScript,Microsoft/TypeScript,kitsonk/TypeScript,RyanCavanaugh/TypeScript,kpreisser/TypeScript,kitsonk/TypeScript,Microsoft/TypeScript,SaschaNaz/TypeScript,kitsonk/TypeScript,kpreisser/TypeScript,Microsoft/TypeScript,RyanCavanaugh/TypeScript,microsoft/TypeScript,weswigham/TypeScript,microsoft/TypeScript,RyanCavanaugh/TypeScript,SaschaNaz/TypeScript,kpreisser/TypeScript,weswigham/TypeScript,SaschaNaz/TypeScript,microsoft/TypeScript,weswigham/TypeScript