security/snort2pfcd: Update to 0.7

• Add LICENSE=NONE as no license has been defined upstream
• Remove patch-Makefile as it has been upstreamed

PR: 212481
Submitted by: onestsam@gmail.com (maintainer)
Reviewed by: amdmi3
Approved by: mat (mentor)
Differential Revision: https://reviews.freebsd.org/D7908