Most of these could have been refactored automatically but it wouldn't
have been uglier. The unsophisticated tooling left lots of unnecessary
struct -> pointer -> struct transitions.
Quite a few images are only used a few times in a few tests. Thus,
the images are being centralized into the agnhost image, reducing
the number of images that have to be pulled and used.
This PR replaces the usage of the following images with agnhost:
- audit-proxy
- crd-conversion-webhook
- entrypoint-tester
- inclusterclient
- iperf
- porter
- serve-hostname
This is part of the transition to using framework/log instead
of the Logf inside the framework package. This will help with
import size/cycles when importing the framework or subpackages.
- moves these helper functions into e2e/framework/auth
- removes logging from helper functions
- in some cases explicitly returns errors that were implicitly
ignored/logged. In the situations where they should be ignored,
we explicitly check that the condition is met before ignoring it.
- fixes references of these methods to use the right package and
return values
