remove greenkeeper config from package.json [ci skip]
remove greenkeeper config from package.json [ci skip]

outsideris/mocha,outsideris/mocha,mochajs/mocha,JohnnyEstilles/mocha,boneskull/mocha,hoverduck/mocha,igwejk/mocha,igwejk/mocha,mochajs/mocha,adamgruber/mocha,hoverduck/mocha,boneskull/mocha,adamgruber/mocha,hoverduck/mocha,boneskull/mocha,JohnnyEstilles/mocha,JohnnyEstilles/mocha,mochajs/mocha,hoverduck/mocha,adamgruber/mocha