This reverts commit 66cbeb6718.
Reason for revert: Causes dart analyzer and dart linter to find
issues within google3 and flutter, causing breakages and blocking
the roll.
Original change's description:
> Re-land "Add a generic return type for js_util functions"
>
> This relands commit 46486cf260.
>
> The differences from the original commit:
> - jsify is no longer being made generic
> - Updated the CHANGELOG
>
> Change-Id: Ibc3402833cce2babbec9a57ad73963d7b9442ed8
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/216920
> Commit-Queue: Riley Porter <rileyporter@google.com>
> Reviewed-by: Sigmund Cherem <sigmund@google.com>
TBR=sigmund@google.com,srujzs@google.com,rileyporter@google.com
Change-Id: Ic2ff63bc9658ccafcab3db75bdd06814d2f17b76
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/216963
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
b70a134933