[Success!] [MERGE][#74101] Make `bzr remove-tree` not remove trees with uncommitted changes by default

[Bundle Buggy]

This change has been merged.
Previous status: Conditionally approved

For details, see: 
http://bundlebuggy.aaronbentley.com/project/bzr/request/%3C1220165571.6914.11.camel%40nemo%3E
Project: Bazaar