Revert "Increase instance size used for RHEL tests [DI-435]"

[JackPGreen]

Reverts #917

Despite testing being unable to reproduce the issue, as soon as merged it failed in the same way as before showing this fix does nothing.

[nishaatr]

Why not keep for now, debug further and then see and revert if need be?
This way not need to revert backports for now.
We don't build Docker a lot so should be ok

[JackPGreen]

Why not keep for now, debug further and then see and revert if need be?

This change offers no value to help debug, it was purely to fix:

Waiting for test-13858020706-1-17-hazelcast-enterprise-mancenter-0 pod to be ready
error: timed out waiting for the condition on pods/test-13858020706-1-17-hazelcast-enterprise-mancenter-0

And it hasn't done that.

There's a (small) cost involved with using ubicloud.

This way not need to revert backports for now. We don't build Docker a lot so should be ok

I wasn't planning on reverting the backports due to effort.

[nishaatr]

I wasn't planning on reverting the backports due to effort.

Sure. I will approve.
Ideally (we agreed) to backport changes as it causes headache so we should revert everywhere.
Anyways, not a biggy as branches are out of sync already!