Remove WWW entries moved into port Makefiles
Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.
This commit removes the WWW: lines of moved-over URLs from these
Approved by: portmgr (tcberner)
rubygem-pg provides the module "pg", a Ruby interface to the
PostgreSQL Relational Database Management System, which
supersedes the old "postgres" module.
Submitted by: Wen Heping <wenheping at gmail.com>