SDN-4062: Revert "SDN-4042: Increase upgrade rollout timers"

[tssurya]

Reverts #2881
IC upgrades were a one time thing, reverting this back to original values in 4.15/main branch.

[openshift-ci-robot]

@tssurya: This pull request references SDN-4062 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the story to target the "4.15.0" version, but no target version was set.

In response to this:

Reverts #2881
IC upgrades were a one time thing, reverting this back to original values in 4.15/main branch.

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[sjenning]

/approve
/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: sjenning, tssurya

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[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD 80efa13 and 2 for PR HEAD 65f96aa in total

[openshift-ci]

@tssurya: all tests passed!

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