Simplify teardown, hopefully making it more robust against CNO races

[mclasmeier]

See #146 (comment) for context.

I think the complexity this adds and the difficulties in getting this robust in the presence of multiple concurent processes (RHACS Operator/Helm reconciler, CNO operator, roxie teardown), is not really worth it.

[mclasmeier]

@vladbologa Your gut feeling was right -- the teardown was still susceptible to leaking of injected-cabundle configmap during teardown.

[mclasmeier]

🙏

[vladbologa]

@vladbologa Your gut feeling was right -- the teardown was still susceptible to leaking of injected-cabundle configmap during teardown.

Too late here, but I was thinking that maybe we could still have the old teardown behavior as a separate command, for the cases where the Operator teardown is broken? Something like --force-teardown