web: remove unused account store

[Thykof]

Delivery Quality Checklist

• Breaking Changes in API:
  Does this PR introduce breaking changes in the API?

  • If yes, have you considered making it backward compatible?
  • If backward compatibility is not considered, set the "breaking-change" label.

• Changelog:

  • For bugfix PR, set the "bugfix" label
  • If this change should not appear in changelog, use "ignore-for-changelog" label

• Version Update Handling:
  Have you ensured that the version update by user is handled correctly?

• PR Dependency:
  Does this PR depend on another PR?

  • If yes, is it necessary for the dependency to be released prior to merging this one?

• Documentation:

  • Are any necessary changes made to user-facing documentation?
  • Confirm that API documentation is updated with any relevant changes.
  • Check that README and other documentation files are accurate and current.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (ce065ec) 22.28% compared to head (475f6c4) 22.09%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1313      +/-   ##
==========================================
- Coverage   22.28%   22.09%   -0.19%     
==========================================
  Files          28       29       +1     
  Lines        1701     1715      +14     
==========================================
  Hits          379      379              
- Misses       1312     1326      +14     
  Partials       10       10              

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