I have a Drop Down List (Multi Value) custom field for Defects. It has been around for quite a while and is now filled with outdated values. I want to write a service that checks the current values and makes changes to remove those values that are no longer relevant.
1) If I implement such a service, would it be as simple as sending a DELETE to the
https://rally1.rallydev.com/slm/webservice/v2.0/allowedattributevalue/{allowed_attribute_ref}
2) How safe is such an action? For example, if I delete an AllowedAttributeValue, but it is still in use in an old Defect someplace, will the DELETE fail? Will it cause data integrity issues to my Rally data? Are there any (other) dangers I should be aware of before deleting AllowedAttributeValues?