516bd072bc
This fixes more api samples references which were autogenerated incorrectly, and brings our api-ref warnings down to 175. It also removes the os-volume-types API references, which turns out to be a complete work of fiction, and never existed. Part of bp:api-ref-in-rst Change-Id: I1395c5e5986d8810ed91e9c9f132ec04f620497c