Disables password check feature (1.14.x).

[mkarolin]

Resolves brave/brave-browser#11423
Uplift from #6501

Submitter Checklist:

• Submitted a ticket for my issue if one did not already exist.
• Used Github auto-closing keywords in the commit message.
• Added/updated tests for this change (for new code or code which already has tests).
• Verified that these changes build without errors on
  • Android
  • iOS
  • Linux
  • macOS
  • Windows
• Verified that these changes pass automated tests (unit, browser, security tests) on
  • iOS
  • Linux
  • macOS
  • Windows
• Verified that all lint errors/warnings are resolved (npm run lint)
• Ran git rebase master (if needed).
• Ran git rebase -i to squash commits (if needed).
• Tagged reviewers and labelled the pull request as needed.
• Request a security/privacy review as needed.
• Add appropriate QA labels (QA/Yes or QA/No) to include the closed issue in milestone
• Public documentation has been updated as necessary. 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/Custom-Headers
  • https://github.com/brave/brave-browser/wiki/Web-compatibility-issues-with-tracking-protection
  • https://github.com/brave/brave-browser/wiki/QA-Guide

Test Plan:

Reviewer Checklist:

• New files have MPL-2.0 license header.
• Request a security/privacy review as needed.
• Adequate test coverage exists to prevent regressions
• Verify test plan is specified in PR before merging to source

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.

[kjozwiak]

test-browser failed on Win x64 due to GreaselionServiceTest.ScriptInjectionWithPrecondition failing as per https://ci.brave.com/job/pr-brave-browser-maxk-remove-check-passwords-1.14.x-windows/1/execution/node/216/log/. However, this is a known intermittent issue that doesn't block uplift.

00:17:51  [  FAILED  ] GreaselionServiceTest.ScriptInjectionWithPrecondition, where TypeParam =  and GetParam() =  (2687 ms)
00:17:51  
00:17:51  [607/608] GreaselionServiceTest.ScriptInjectionWithPrecondition (2858 ms)
00:17:54  1 test failed:
00:17:54      GreaselionServiceTest.ScriptInjectionWithPrecondition (../../brave/browser/greaselion/greaselion_browsertest.cc:265)
00:17:54  null

@mkarolin does the above need to be rebased? Looks like macOS failed init as per https://ci.brave.com/job/pr-brave-browser-maxk-remove-check-passwords-1.14.x-macos/1/execution/node/104/log/.

23:55:21  1 failed patches:
23:55:21  chrome/VERSION
23:55:21    - Patch applied because: No corresponding .patchinfo file was found.
23:55:21    - Error - Program git exited with error code 1.
23:55:21  error: patch failed: chrome/VERSION:1
23:55:21  error: chrome/VERSION: patch does not apply

[kjozwiak]

test-browser failed on Win x64 due to GreaselionServiceTest.ScriptInjectionWithPrecondition failing as per https://ci.brave.com/job/pr-brave-browser-maxk-remove-check-passwords-1.14.x-windows/2/execution/node/216/log/. However, this is a known intermittent issue and doesn't block uplift.

03:43:02  [  FAILED  ] GreaselionServiceTest.ScriptInjectionWithPrecondition, where TypeParam =  and GetParam() =  (2832 ms)
03:43:02  
03:43:02  [605/605] GreaselionServiceTest.ScriptInjectionWithPrecondition (3002 ms)
03:43:02  1 test failed:
03:43:02      GreaselionServiceTest.ScriptInjectionWithPrecondition (../../brave/browser/greaselion/greaselion_browsertest.cc:265)

[kjozwiak]

Uplift into 1.14.x approved after deliberating with @brave/uplift-approvers. QA has also verified the PR on Nightly as per #6501 (comment).