Revert "SmartCard: Permission Context"

This reverts commit 96d25ca77ab5a0b5b201079c41dece0c392a27c2.

Reason for revert: A test added in the CL is failing on Msan, e.g.
https://ci.chromium.org/ui/p/chromium/builders/ci/Linux%20ChromiumOS%20MSan%20Tests/40786/test-results?sortby=&groupby=

Original change's description:
> SmartCard: Permission Context
>
> go/web-smart-card-api-permissions
>
> Bug: 1464851
> Low-Coverage-Reason: TESTS_IN_SEPARATE_CL Testing of SmartCardReaderTracker will come alongside its implementation in another CL.
> Change-Id: I00e6e288176fce17de5ed601d514dc38151f1b2c
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5053734
> Reviewed-by: Florian Jacky <fjacky@chromium.org>
> Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
> Reviewed-by: Balazs Engedy <engedy@chromium.org>
> Reviewed-by: Caroline Rising <corising@chromium.org>
> Reviewed-by: Andy Paicu <andypaicu@chromium.org>
> Commit-Queue: Daniel d'Andrada <dandrader@google.com>
> Cr-Commit-Position: refs/heads/main@{#1249280}

Bug: 1464851, 1520045
Change-Id: Ia5bd2419e04b95dc594534a514cd296587627ae0
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5218200
Commit-Queue: Scott Haseley <shaseley@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Owners-Override: Scott Haseley <shaseley@google.com>
Cr-Commit-Position: refs/heads/main@{#1249635}