chore: remove outdated mentions of removed scripts/account-import-strategies

[legobeat]

Description

The directory was removed in #19815. This updates mentions in comment and configuration

Related issues

• 19815

Manual testing steps

Screenshots/Recordings

Before

After

Pre-merge author checklist

• [x] I’ve followed MetaMask Coding Standards.
• [x] I've completed the PR template to the best of my ability
• [x] I’ve included tests if applicable
• [x] I’ve documented my code using JSDoc format if applicable
• [x] I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• [ ] I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• [ ] I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[github-actions[bot]]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 67.48%. Comparing base (c6f9b01) to head (ec2ea60).

:exclamation: Current head ec2ea60 differs from pull request most recent head e39f566. Consider uploading reports for the commit e39f566 to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #24380 +/- ## =========================================== + Coverage 67.37% 67.48% +0.11% =========================================== Files 1289 1288 -1 Lines 50213 50153 -60 Branches 13005 13023 +18 =========================================== + Hits 33827 33841 +14 + Misses 16386 16312 -74 ```

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