Revert "bpo-31356: Add context manager to temporarily disable GC GH-5495 (#5496)

This reverts commit 72a0d218dcc94a3cc409a9ef32dfcd5a7bbcb43c.

The reverted commit had a few issues so it was unanimously decided
to undo it. See the bpo issue for details.
(cherry picked from commit 383b32fe108ea627699cc9c644fba5f8bae95d73)

Co-authored-by: Yury Selivanov <yury@magic.io>
6 files changed