Remove unused imports.
Remove unused imports.

georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,magny/DefinitelyTyped,borisyankov/DefinitelyTyped,dsebastien/DefinitelyTyped,magny/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,borisyankov/DefinitelyTyped,markogresak/DefinitelyTyped,mcliment/DefinitelyTyped,dsebastien/DefinitelyTyped