Revert "[UPM-Desktop] Add PasswordManager logos to the app manifest."

This reverts commit f671d019.

Reason for revert: broke the build on linux and CrOS builders, examples: https://ci.chromium.org/p/chrome/builders/ci/linux-chrome/57372, https://ci.chromium.org/p/chrome/builders/ci/chromeos-arm64-generic-cfi-thin-lto-chrome/4966

Original change's description:
> [UPM-Desktop] Add PasswordManager logos to the app manifest.
>
> This CL add the password manager logo to the WebApp manifest.
> Branded and unbranded builds are using different logos, and
> branded builds are using a logo from the chromium-internal repository.
>
> Bug: 1358448
> Change-Id: I78aa3911391e53c677fee0ada0fc97040344f232
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4014139


> Reviewed-by: Nico Weber <thakis@chromium.org>
> Reviewed-by: Viktor Semeniuk <vsemeniuk@google.com>
> Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
> Commit-Queue: Maria Kazinova <kazinova@google.com>
> Cr-Commit-Position: refs/heads/main@{#1072149}

Bug: 1358448
Change-Id: I5a4c4fdc5aa0e985026ee39f87715fc9a6147081
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4030558
Auto-Submit: Olga Sharonova <olka@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Owners-Override: Olga Sharonova <olka@google.com>
Cr-Commit-Position: refs/heads/main@{#1072163}