Remove unused include
Remove unused include

Those include were introduce by the patch :
	3030bf4cb97db33fcdfe7e69706fdb0f19b0f446
	Port to glib multicast socket functions

It seem there were needed in the first revision of the patch
but not anymore after reviews.

Moreover this will fix the build with bionic as ifaddrs.h is
not available on this toolchain.

Signed-off-by: Aurélien Chabot <aurelien.chabot@parrot.com>

https://bugzilla.gnome.org/show_bug.cgi?id=765709

GNOME/gssdp,GNOME/gssdp,GNOME/gssdp