pidgin/pidgin

Remove the oscar protocol plugin from po/POTFILES.in
release-2.x.y v2.14.3
2021-04-08, Gary Kramlich
723c284ecfa1
Remove the oscar protocol plugin from po/POTFILES.in

Testing Done:
Ran `make dist` successfully.

Reviewed at https://reviews.imfreedom.org/r/601/
soundsdir = $(datadir)/sounds/purple
sounds_DATA = \
alert.wav \
login.wav \
logout.wav \
receive.wav \
send.wav
EXTRA_DIST = \
Makefile.mingw \
$(sounds_DATA)