Remove curl dependencies in e2e tests

[strongjz]

In order to remove curl from our controller container, we need to remove curl dependencies in our e2e tests.

https://github.com/search?q=repo%3Akubernetes%2Fingress-nginx%20curlCmd&type=code

These tests should move the http requests to our dbg container which uses nginx for requests.

https://github.com/kubernetes/ingress-nginx/blob/main/cmd/dbg/main.go

https://github.com/kubernetes/ingress-nginx/blob/main/internal/nginx/main.go#L65

[k8s-ci-robot]

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[tao12345666333]

great! +1

[github-actions]

This is stale, but we won't close it automatically, just bare in mind the maintainers may be busy with other tasks and will reach your issue ASAP. If you have any question or request to prioritize this, please reach #ingress-nginx-dev on Kubernetes Slack.

[sonbui00]

/assign