build: Don't expect translatable strings in a dead file

daemon/remote_dispatch_bodies.h is no longer with us and shouldn't be
searched for translatable strings.

po/POTFILES.in

 daemon/libvirtd.c
 daemon/remote.c
-daemon/remote_dispatch_bodies.h
 daemon/stream.c
 gnulib/lib/gai_strerror.c
 src/conf/cpu_conf.c