Update FetchLaterAPI to not use "deferred-fetch" for now
The discussion is not yet finalized, but we want to extend OT for
other partners.
Bug: 40276121
Change-Id: I6f163add73707be7b9c2b34d58dce22542621293
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5833346
Reviewed-by: Nidhi Jaju nidhijaju@chromium.org
Commit-Queue: Ming-Ying Chung mych@chromium.org
Cr-Commit-Position: refs/heads/main@{#1351171}