Rewriting the property attribute on custom handlers or formatters does not unset values

I'm not setting a target for this as likely part of this needs to be solved in the logmanager. Currently rewriting properties does not unset properties that have been removed from the property map. It seems simple enough to just pass a null value to the property and then remove the property, but this won't work for primitives.

From the WildFly perspective there is no way from the configuration API to determine the type for a property to set. This is the part that should probably be handled in the logmanager. WildFly will need to set the value to null once this is solved on the logmanager side.