Revert "Reapply "Use typed promises/resolvers for ReadableStream and related classes""

This reverts commit 39adf0544a3fbfcce710b0490d3825174c0c6e12.

Reason for revert: Crashes in the wild: crbug.com/332806529

Original change's description:

Reapply "Use typed promises/resolvers for ReadableStream and related classes"

This converts IDL-exposed promises in ReadableStream, ReadableStreamBYOBReader, ReadableStreamDefaultReader, and ReadableStreamGenericReader to use typed ScriptPromiseResolver instead of StreamPromiseResolver and to return typed ScriptPromises.

Bug: 329702363 Change-Id: I6dad0ce6902c2dd5411185800bdd5a6dd8585df8 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5410703 Reviewed-by: Nidhi Jaju nidhijaju@chromium.org Commit-Queue: Nate Chapin japhet@chromium.org Reviewed-by: Adam Rice ricea@chromium.org Cr-Commit-Position: refs/heads/main@{#1281906}

Bug: 329702363 Change-Id: I2a70811f87d844a1686fc082d67c8dbc473f91c2 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5427820 Commit-Queue: Nate Chapin japhet@chromium.org Bot-Commit: Rubber Stamper rubber-stamper@appspot.gserviceaccount.com Cr-Commit-Position: refs/heads/main@{#1283318}