pidgin/pidgin

Remove some remaining remnants of the old infopane widget

2021-06-17, Gary Kramlich
c365ae7720ac
Remove some remaining remnants of the old infopane widget

Testing Done:
Ran locally with `G_DEBUG=fatal-warnings` to verify the warnings this was producing were fixed.

Reviewed at https://reviews.imfreedom.org/r/752/
libpurple/data/purple-url-handler.desktop.in
libpurple/protocols/null/nullprpl.c
pidgin/data/im.pidgin.Pidgin.desktop.in
sub/libpurple/data/purple-url-handler.desktop.in
sub/libpurple/protocols/null/nullprpl.c
sub/pidgin/data/im.pidgin.Pidgin.desktop.in