provider fails to remove package not in catalog

If you install a package and then remove it from the catalog, pkutil provider fails to remove the package:

```
Solving needed dependencies ...
Package bpub-tools not in catalog. Exiting.
Error: /Stage[main]/Main/Package[bpub-tools]/ensure: change from 5.0.4.70 to absent failed: Execution of '/opt/csw/bin/pkgutil -y -r bpub-tools' returned 1:
```
