Hide some earlier golf courses

[nvkelso]

            golf_course-early:
                filter:
                    kind: golf_course
                    any:
                        - { $zoom: [12], area: { max: 2500000 } }
                draw:
                    mapzen_icon_library:
                        visible: false

[nvkelso]

Should be zoom 13, not 12:

• https://www.openstreetmap.org/way/16753068#map=13/37.7210/-122.4897

• Should still be 12:

• https://www.openstreetmap.org/way/45755011#map=12/39.0626/-77.1395

[nvkelso]

Looks like we could use the new area filters in #1609 for this...

[nvkelso]

QA verified.