[Web Payments] Remove deprecated interface.

Bug: 884680
Change-Id: Ibfb6b5c5a9a6460077b141523b412360a6a0a613
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1626543
Commit-Queue: Rouslan Solomakhin <rouslan@chromium.org>
Commit-Queue: Danyao Wang <danyao@chromium.org>
Auto-Submit: Rouslan Solomakhin <rouslan@chromium.org>
Reviewed-by: Danyao Wang <danyao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#662785}
1 file changed