MFH: r411364

graphics/graphite2: rely on default EXTRACT_SUFX after r411337

2016Q1 lacks r410613 which leads to the following error:

> silnrsi-graphite-1.3.7_GH0.tgz is not in graphics/graphite2/distinfo.

> Either graphics/graphite2/distinfo is out of date, or

> silnrsi-graphite-1.3.7_GH0.tgz is spelled incorrectly.

or

> Extracting for graphite2-1.3.7

> No SHA256 checksum recorded for silnrsi-graphite-1.3.7_GH0.tgz.

> No suitable checksum found for silnrsi-graphite-1.3.7_GH0.tgz.

Reported by: mav
Pointy hat: jbeich
Approved by: ports-secteam bustage blanket