Revert Chromium 74 from master

[bsclifton]

DO NOT MERGE UNLESS CI PASSES

Related brave/brave-core#2079
Reverts:

• Upgrade Chromium from 73.0.3683.75 to Chromium 74.0.3729.22 #3790
• Disabling metrics reporting; Updating ad-block deps to fix audit_deps error; Updating crypto deps to fix audit_deps error;  brave-core#2029
• Tokens that fail to redeem due to network errors should be added to a queue and retried brave-core#2072
  Fixes Chromium 74 update is breaking nightly build #3898
  Unfixes:
• Upgrade from Chromium 73.0.3683.75 to Chromium 74.0.3729.40 #3502
• Tokens that fail to redeem due to network errors should be added to a queue and retried #3662
• Crash reporting connects to clientservices.googleapis.com on startup #3816, Update ad-block vendor deps to fix npm audit error #3871, Update crypto vendor deps to fix npm audit error #3877, and Update sync vendor deps to fix npm audit error #3878

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
  • Windows
  • macOS
  • Linux
• Verified that these changes pass automated tests (npm test brave_unit_tests && npm test brave_browser_tests && npm run test-security) on
  • Windows
  • macOS
  • Linux
• Ran git rebase master (if needed).
• Ran git rebase -i to squash commits (if needed).
• Tagged reviewers and labelled the pull request as needed.
• Requested a security/privacy review as needed.

Test Plan:

1. Go into Jenkins for this PR
2. Verify everything passes on all platforms
3. If anything fails, don't merge

Reviewer Checklist:

• New files have MPL-2.0 license header.
• Request a security/privacy review as needed.
• Adequate test coverage exists to prevent regressions.