Matthew Fulmer created an installer script which removes Traits:
<http://installer.pbworks.com/UnloadTraits>
Pbwiki has since changed name to pbworks so there appears to be some detective work required to find the required change sets.

Ken G. Brown

At 9:46 PM +1200 9/15/09, Michael van der Gulik apparently wrote:
>Hi all.
>
>I need an image which has:
>* No traits.
>* Monticello.
>* MIT / Apache 2.0 license.
>* As few bugs as possible.
>
>I need this to grab the code in the Kernel-* and Collections-* categories as a base for namespaced versions. This will be a fork and until I write special tools to manage namespaced changesets, it will be one-way.
>
>What are my options?
>
>Is Squeak now under the Apache 2.0 and MIT licenses, or are bits in Kernel and Collections still under Squeak-L? Was the relicensing effort successful? The Squeak web site says otherwise.
>
>Is Cuis really released under the MIT license? Did Juan relicense it from Apache 2.0?
>
>How difficult is it to remove traits from Squeak or Pharo?
>
>How difficult is it to add Monticello to Cuis?
>
>And the flamebait: which release has the fewest bugs in the Kernel-* and Collections-* categories?
>
>Thanks,
>Gulik.
>
>--
><http://gulik.pbwiki.com/>http://gulik.pbwiki.com/