Bug 1678070 - mozlint/license: remove .hg from the exclude list r#linter-reviewers, hsivonen r=linter-reviewers,ahal DONTBUILD

Differential Revision: https://phabricator.services.mozilla.com/D97484

tools/lint/license.yml

@@ -4,7 +4,6 @@ license:
     include:
         - .
     exclude:
-        - .hg
         # These paths need to be triaged.
         - build/pgo/js-input
         # License not super clear