v0.17.16

Changes

Remove unused Dockerfile (#2536)
It was introduced by #1571 and is not used.
Skipper images are built from Dockerfiles located in the /packaging folder.
This should also reduce the number of dependabot updates.

Multiarch Docker image

Multiarch Docker image is available in Github's docker registry:

docker run -it ghcr.io/zalando/skipper:v0.17.16 skipper --help

Docker image

Docker image is available in Zalando's Open Source registry:

docker run -it registry.opensource.zalan.do/teapot/skipper:v0.17.16 skipper --help