Remove jobs that run only Feature:Audit tests.
Remove jobs that run only Feature:Audit tests.

[Feature:Audit] tests has been be moved to default test suite
(https://github.com/kubernetes/kubernetes/pull/55953).

GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid