chore(eslint): you really don't need propTypes for className
chore(eslint): you really don't need propTypes for className

Signed-off-by: Michael Smykowski <b9679d96d071f488bd14beedc1f1d4924bf5aa7a@pivotal.io>

sjolicoeur/pivotal-ui,pivotal-cf/pivotal-ui,sjolicoeur/pivotal-ui,pivotal-cf/pivotal-ui,sjolicoeur/pivotal-ui,pivotal-cf/pivotal-ui,sjolicoeur/pivotal-ui