Don't build unused linters for the ArcanistConfigurationDrivenLintEngine

Summary: Fixes T5124.

Test Plan: arc lint on a Phabricator diff that doesn't have JS files doesn't complain on missing JSHint.

Reviewers: Blessed Reviewers, joshuaspence, epriestley

Reviewed By: joshuaspence

Subscribers: epriestley, Korvin

Maniphest Tasks: T5124

Differential Revision: https://secure.phabricator.com/D9843