Don't add yourself to the AUTHORs file - its generated

Last time I discussed this with @tianon, the AUTHORS was being
regenerated regularly, so we could remove this step.

Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@fosiki.com> (github: SvenDowideit)
gofmt does not result in the same thing as go fmt -s file.go, which is what travis tests for

Docker-DCO-1.1-Signed-off-by: SvenDowideit <SvenDowideit@home.org.au> (github: SvenDowideit)
Merge pull request #6067 from SvenDowideit/go-fmt-s

gofmt does not result in the same thing as go fmt -s, which is what travis uses
Merge pull request #5402 from SvenDowideit/dont-update-authors

Don't add yourself to the AUTHORs file - its generated