Summary:
- Since we'll never serve these directly, move them to resources/. This makes generating the Celerity map faster and reduces the size of the result map, since we don't need to analyze resources we'll never serve.
- Also Rename the 2x `subscribe-remove` to `subscribe-delete` since they were named inconsistently. Everything else is in good shape.
Test Plan: Generated sprites as per D4025
Reviewers: chad
Reviewed By: chad
CC: aran
Maniphest Tasks: T2013
Differential Revision: https://secure.phabricator.com/D4026
