So, I realized that media_path is actually unreachable when rendering the template. That's because when you call media_path, it uses rails route helpers and gives you '/media' as result. Therefore I don't see much benefit of adding deprecation warning there, someone could still use this helpers directly from plugin but since it's usecase is for templates rendering I think it's very unlikely. Also it could be easily reverted if needed. Thus I'll simply remove it.

Applied in changeset 545444ec079a421fc173e1f92a352c256c4c4b9a.