Fixes lint script.

[mkarolin]

Fixes #5971

Removed auth_config from our script as we don't need to pass it to
devtools script any more.

The failure is due to devtools change:

commit 934836a6c5b1a3442db7f7197569fc1bbdcb8991 [log] [tgz]
author Edward Lemur ehmaldonado@chromium.org Mon Sep 09 20:16:54 2019
committer Commit Bot commit-bot@chromium.org Mon Sep 09 20:16:54 2019
tree c6cb985aca378a2f816bb7d21a072394b1d4882a
parent 1e4d70d1dd0865b0ac824beccee70d3852705dd8 [diff]
git-cl: Remove unused auth configs.

auth_config is a Rietveld thing, so it's not necessary
in most of the code, except for triggering try bots.

Bug: 1001756
Change-Id: I0f243a297b05a43a61b052ba75c5886556e81b4e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/1793018

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
• 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.
• 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-Protection-Mode
  • 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

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.

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.

[mkarolin]

Passed lint step in CI on all platforms.