lang/groovy: security update 2.3.9 -> 2.4.4

• Add NO_ARCH
• Remove various LICENSE files that were removed upstream
• Remove PDF documentation that was removed upstream
• Switch @dirrm to @dir
• Reset maintainer to ports@FreeBSD.org by private request [1]

PR: 201704
Security: CVE-2015-3253
Security: 67b3fef2-2bea-11e5-86ff-14dae9d210b8
Approved by: mjs@Bur.st (outgoing maintainer) [1], feld (mentor)
MFH: 2015Q3