They interfere with gofmt -w across this directory.

Follow-up on https://go-review.googlesource.com/32819.

For #16339 (comment).

Change-Id: I4298b6117d89517d4fe6addce3942d950d821817
Reviewed-on: https://go-review.googlesource.com/33019Reviewed-by: Matthew Dempsky <mdempsky@google.com>