[cr133] Remove all NOTREACHED_IN_MIGRATION remaining

[cdesouza-chromium]

NOTREACHED_IN_MIGRATION has now been deleted from chromium in M133. This was expected, and the existing occurrances have to be migrated to NOTRECHEAD. At this point, the only difference between NOTREACHED, and NOTREACHED_IN_MIGRATION, is that NOTREACHED is tagged as no return.

Chromium change:
https://chromium.googlesource.com/chromium/src/+/e238462dc67196d361ee0bbaf1954969619cab27

commit e238462dc67196d361ee0bbaf1954969619cab27
Author: Peter Boström <[email protected]>
Date:   Fri Nov 15 00:46:51 2024 +0000

    Remove NOTREACHED_IN_MIGRATION()

    Bug: 40580068

Resolves

Submitter Checklist:

• I confirm that no security/privacy review is needed and no other type of reviews are needed, or that I have requested them
• There is a ticket for my issue
• Used Github auto-closing keywords in the PR description above
• Wrote a good PR/commit description
• Squashed any review feedback or "fixup" commits before merge, so that history is a record of what happened in the repo, not your PR
• Added appropriate labels (QA/Yes or QA/No; release-notes/include or release-notes/exclude; OS/...) to the associated issue
• Checked the PR locally:
  • npm run test -- brave_browser_tests, npm run test -- brave_unit_tests wiki
  • npm run presubmit wiki, npm run gn_check, npm run tslint
• Ran git rebase master (if needed)

Reviewer Checklist:

• A security review is not needed, or a link to one is included in the PR description
• New files have MPL-2.0 license header
• Adequate test coverage exists to prevent regressions
• Major classes, functions and non-trivial code blocks are well-commented
• Changes in component dependencies are properly reflected in gn
• Code follows the style guide
• Test plan is specified in PR before merging

After-merge Checklist:

• The associated issue milestone is set to the smallest version that the
  changes has landed on
• All relevant documentation has been updated, for instance:
  • https://github.com/brave/brave-browser/wiki/Deviations-from-Chromium-(features-we-disable-or-remove)
  • https://github.com/brave/brave-browser/wiki/Proxy-redirected-URLs
  • https://github.com/brave/brave-browser/wiki/Fingerprinting-Protections
  • https://github.com/brave/brave-browser/wiki/Brave%E2%80%99s-Use-of-Referral-Codes
  • https://github.com/brave/brave-browser/wiki/Web-Compatibility-Exceptions-in-Brave
  • https://github.com/brave/brave-browser/wiki/QA-Guide
  • https://github.com/brave/brave-browser/wiki/P3A

Test Plan:

[tmancey]

LGTM++ (just a couple nits)

[yrliou]

wallet++