The old pose library should be removed from the UI in Blender 3.2, as discussed in the [2021-11-25 Animation & Rigging module meeting](https://devtalk.blender.org/t/2021-11-25-animation-rigging-module-meeting/21536).
- [x] Removal of UI panel in the Armature Properties panel.
- [x] Removal of the operators from the Pose menu in the 3D Viewport.
- [ ] Make a concrete list of Python functionality/APIs to deprecate.
- [ ] Addition of deprecation notes to the Python interface of the pose library.