princess: clean up old code

[protitude]

Describe context / purpose for this PR

Retire princess

Issue link

#1230

Any other related PRs?

• https://github.com/UCBoulder/oit_dingo/pull/1231
• princess list removed UCBoulder/oit_dingo#1230 servicenow#5

Link to MultiDev instance

http://md-1230-ucbsub-oit.pantheonsite.io

Checklist for PR author

• I have checked that the PR is ready to be merged
• I have reviewed the DIFF and checked that the changes are as expected
• I have assigned myself or someone else to review the PR

[Copilot]

Pull request overview

This PR retires the “princess” functionality by removing the associated Drush commands and dependency injection wiring from the OIT module, aligning with the goal of cleaning up old/unused code.

Changes:

• Removed PrincessList dependency injection and related property from OitCommands.
• Removed the oit:reload-princess and oit:load-princess Drush commands.
• Updated drush.services.yml to stop injecting @servicenow.princess.list.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/Commands/OitCommands.php	Drops PrincessList import/injection and removes the Princess-related Drush command methods.
drush.services.yml	Removes the @servicenow.princess.list argument from the oit.commands Drush service definition.

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