Merge branch 'update-gitignore' into 'master'

Remove redigomock from .gitignore

See merge request gitlab-org/gitlab-workhorse!413

.gitignore

@@ -5,6 +5,4 @@ testdata/public
 /gitlab-zip-cat
 /gitlab-zip-metadata
 /_build
-# Avoid distributing redigomock because it is GPLv2
-/vendor/github.com/rafaeljusto/redigomock
 coverage.html