Remove unnecessary #ifdef and includes.
We don't check HAVE_LIBPCAP elsewhere, and we do use GLib functions, but
don't use the GLib dynamic-loading APIs ourselves, and don't appear to
use anything from libpcap or libwiretap, so include only <glib.h> and
include it unconditionally.
Change-Id: I97f06f56b7d87c671c0aaea1a0e60f2df7adfbd1
Reviewed-on: https://code.wireshark.org/review/13067
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Guy Harris <guy@alum.mit.edu>