Revert "[Payments] remove stubs for Clank dependencies"

This reverts commit 53550932a3c3feb11dea71b01441ea17047b3878.

Reason for revert: This CL seems to have broken compile on the android_arm64-builder-perf bot:
https://ci.chromium.org/p/chrome/builders/ci/android_arm64-builder-perf/135203

Original change's description:
> [Payments] remove stubs for Clank dependencies
> 
> This cl removes stubs from PaymentApp and PaymentInstrument classes as
> well as payment_handler_host.mojom
> 
> This should get landed after the dependnet Clank cl gets merged:
> https://chrome-internal-review.googlesource.com/c/clank/internal/apps/+/2255260
> 
> Bug: 984694
> Change-Id: I03972ab75d7c4f33b644ebf77a9ef2618ef07921
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1946457
> Reviewed-by: Ken Buchanan <kenrb@chromium.org>
> Reviewed-by: Rouslan Solomakhin <rouslan@chromium.org>
> Commit-Queue: Sahel Sharify <sahel@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#721089}

TBR=kenrb@chromium.org,rouslan@chromium.org,sahel@chromium.org

Change-Id: Iff10dbae61e31d32312bf8a4ca947b00ed003fae
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 984694
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1948919
Reviewed-by: Takumi Fujimoto <takumif@chromium.org>
Commit-Queue: Takumi Fujimoto <takumif@chromium.org>
Cr-Commit-Position: refs/heads/master@{#721200}
4 files changed