lint: Remove custom --no-gitlint option.

zulint already has --skip for this.

Signed-off-by: Anders Kaseorg <anders@zulip.com>

tools/lint

@@ -15,7 +15,6 @@ EXCLUDED_FILES = [
 def run() -> None:
     parser = argparse.ArgumentParser()
     add_default_linter_arguments(parser)
-    parser.add_argument('--no-gitlint', action='store_true', help='Disable gitlint')
     args = parser.parse_args()
 
     linter_config = LinterConfig(args)
@@ -27,8 +26,6 @@ def run() -> None:
                                   description="Static type checker for Python (config: mypy.ini)")
     linter_config.external_linter('flake8', ['flake8'], ['py'],
                                   description="Standard Python linter (config: .flake8)")
-
-    if not args.no_gitlint:
     linter_config.external_linter('gitlint', ['tools/lint-commits'],
                                   description="Git Lint for commit messages")
 

tools/test-static-analysis

@@ -2,5 +2,5 @@
 
 set -ev
 
-tools/lint --no-gitlint
+tools/lint --skip=gitlint
 tools/run-mypy