gh-116946: Revert GC protocol for immutable empty heap types (GH-138266, GH-138288...

gh-116946: Revert GC protocol for immutable empty heap types (GH-138266, GH-138288, GH-138289) (#138338)

* Revert "gh-116946: fully implement GC protocol for `bz2` objects (#138266)"

This reverts commit 9be91f6a20ed2fd9b491c3e779dc45c7392f60ca.

* Revert "gh-116946: fully implement GC protocol for `lzma` objects (#138288)"

This reverts commit 3ea16f990f81e1e3b2892f1dfd213937b1df2a68.

* Revert "gh-116946: fully implement GC protocol for `_hashlib` objects (#138289)"

This reverts commit 6f1dd9551a69c8c76d066a04e94db6dbc6c7597c.