GH-89914: Remove f_globals and f_builtins fields from _PyInterpreterFrame.

[markshannon]

This PR removes the f_globals and f_builitns from the _PyInterpreterFrame struct.
It is the first part of faster-cpython/ideas#111 (comment)

It is the simplest part of that idea, and the part that could potentially cause a slowdown, so I though it best to do in its own PR.

Benchmarking shows a 1% slowdown, so it is probably best not to merge this until we can demonstrate a speedup with the rest of faster-cpython/ideas#111 (comment)

[markshannon]

It looks like faster-cpython/ideas#111 (comment) isn't worth doing, at least not yet.