pidgin/pidgin

Remove NAT-PMP port mapping code

18 months ago, Elliott Sales de Andrade
421c761287d8
Remove NAT-PMP port mapping code

Like UPnP, this will move into Traversity, and even though it's not implemented
there yet, at this point, nothing is calling this code.

Testing Done:
Compiled only.

Reviewed at https://reviews.imfreedom.org/r/2123/
syntax: glob
.*.swp
.DS_Store
.flatpak-builder
*.pyc
*~
\#*\#
syntax: regexp
^build(.+)?\/
win32-install-dir(\.release)?
po\/pidgin\.pot$
^subprojects\/.+\/