bpo-43693: Revert commits 2c1e2583fdc4db6b43d163239ea42b0e8394171f and b2bf2bc1ece673d387341e06c8d3c2bc6e259747  (GH-26530)

* Revert "bpo-43693: Compute deref offsets in compiler (gh-25152)"

This reverts commit b2bf2bc1ece673d387341e06c8d3c2bc6e259747.

* Revert "bpo-43693: Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388)"

This reverts commit 2c1e2583fdc4db6b43d163239ea42b0e8394171f.

These two commits are breaking the refleak buildbots.
23 files changed