e2e test framework provides useful functions for implementing e2e tests,
but the framework itself should not contain e2e tests theirself.
This adds hacking check for blocking implementing e2e tests in the
framework.
As https://github.com/kubernetes/kubernetes/pull/78478 we can use
ExpectNoError() instead of Expect(err).ToNot(HaveOccurred()) also.
This makes the test code check strict to cover the above case and
replaces the remaining in test/e2e/common/expansion.go
We can use framework.ExpectError() for checking the expected error
happens. However Expect(err).To(HaveOccurred()) can be used instead
and that makes the e2e test code unreadable.
This adds the check to use framework.ExpectError() for readable code.