e2e: make sure u2o disabled

[bobz965]

Pull Request

• [ ] Make sure you have followed Kube-OVN Code Style.

What type of this PR

Examples of user facing changes:

• Tests

Which issue(s) this PR fixes

Fixes #(issue-number)

[bobz965]

@changluyi 这边应该是代码还有点问题，我再修修。 e2e 应该 ok 了。