Revert "skipper: enhance opentracing for auth filters"
Revert "skipper: enhance opentracing for auth filters"

This reverts commit 3c78950fe40c9fdb9f2136ce8755fe8dfebd7118.

Signed-off-by: Alexey Ermakov <6610c7e1c26fb4c3222ac4f760cb43a9f3c01622@zalando.de>

zalando-incubator/kubernetes-on-aws,zalando-incubator/kubernetes-on-aws,zalando-incubator/kubernetes-on-aws