What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind api-change
/kind bug
/kind cleanup
/kind design
/kind documentation
/kind failing-test
/kind feature
/kind flake

/kind bug

What this PR does / why we need it:

Refer Azure/go-autorest#398. In go-autorest SDK https://github.com/Azure/go-autorest/blob/master/autorest/sender.go#L258,
if ARM returns http.StatusTooManyRequests, the sender doesn't increase the retry attempt count,
hence the Azure clients will keep retrying forever until it gets a status code other than 429.

// don't count a 429 against the number of attempts
// so that we continue to retry until it succeeds
if resp == nil || resp.StatusCode != http.StatusTooManyRequests {
    attempt++
}

So this PR explicitly remove http.StatusTooManyRequests from autorest.StatusCodesForRetry.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

• Need cherry pick to v1.13-v1.15.

Does this PR introduce a user-facing change?:

Fix Azure client requests stuck issues on http.StatusTooManyRequests (HTTP Code 429).

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

/kind bug
/area provider/azure
/priority critial-urgent