Reevaluate MultiphaseOverallContext.transformServerOperation

DomainRolloutStepHandler when it's pushing ops out to the servers calls MultiphaseOverallContext.transformServerOperation, which in turn transforms the operation. But the operation in question has been supplied by the slave HC. It should not need transformation.

Perhaps the result would need transformation, but I don't see how the op provided by the slave would provide reliable input for working out that transformation.

One thing to be careful about when looking at this is the possibility that the operation is a composite and a step in it has not been provided by the slave HC, but rather is the original request input.

As part of this, check if the "push-to-servers" workaround discussed in https://github.com/wildfly/wildfly/pull/10676 has been merged, and if it has try and remove that.