Graceful shutdown is interfering with the 'kill' and 'destroy' operations

The 'kill' and 'destroy' operations on the HC are meant to force shutdown of misbehaving servers. But the graceful shutdown work ([1]) has introduced a management op into the mix. I believe that should be removed, as its not the intent of these operations to try and be graceful; the regular 'stop' ops are for that.

When experimenting with how domains react to OOME servers as part of my WFCORE-378 work I'm seeing 'kill' and 'destroy' no longer function because the OOME on the server means the graceful shutdown management op hangs.

[1] https://github.com/wildfly/wildfly-core/commit/6e95b5#diff-ecdfa997cd57af67393e4962b54ead64