Automatic merge from submit-queue
remove [Conformance] flag on some e2es
Downstream distributions that absorb the upstream tests would like to give their customers a standard mechanism to validate their clusters, post setup. As of today [Conformance] works for most things, but there are a known set of tests that vary due to opinionated differences around networking, security, etc... and providing a complete skip list can be cumbersome. To address this, we've simply modified the flag on some tests to [Conformance:Variant]. All existing behavior should be maintained.
Fixes: #34105
ff43515ff7