Remove unused OutputReader from analysis.go.
Remove unused OutputReader from analysis.go.

Reviewers: #core_team, mazurak

Reviewed By: #core_team, mazurak

Differential Revision: https://phabricator-dot-kythe-repo.appspot.com/D1057

benjyw/kythe,bzz/kythe,bzz/kythe,kythe/kythe,kythe/kythe,benjyw/kythe,legrosbuffle/kythe,bzz/kythe,bzz/kythe,legrosbuffle/kythe,legrosbuffle/kythe,kythe/kythe,benjyw/kythe,benjyw/kythe,legrosbuffle/kythe,bzz/kythe,benjyw/kythe,benjyw/kythe,kythe/kythe,kythe/kythe,legrosbuffle/kythe,kythe/kythe,legrosbuffle/kythe,legrosbuffle/kythe,legrosbuffle/kythe,benjyw/kythe,bzz/kythe,kythe/kythe,kythe/kythe,bzz/kythe,kythe/kythe,benjyw/kythe,benjyw/kythe,bzz/kythe,bzz/kythe,benjyw/kythe,legrosbuffle/kythe,legrosbuffle/kythe,benjyw/kythe,bzz/kythe,kythe/kythe,bzz/kythe,bzz/kythe,benjyw/kythe,legrosbuffle/kythe,kythe/kythe