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
pkg-descr files.
Approved by: portmgr (tcberner)
dfu-programmer is a Device Firmware Update based USB programmer
for Atmel chips with a USB bootloader.
WWW: http://dfu-programmer.sourceforge.net/
PR: 137020
Submitted by: Emmanuel Vadot <elbarto@arcadebsd.org>