remote: remove useless $(LIBSOCKET) variable

GNULIB sets $(LIBSOCKET) on mingw to pull in the windows socket
APIs. This is trivially not required, since we don't build libvirtd
on mingw.
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>

src/remote/Makefile.inc.am

@@ -181,7 +181,6 @@ endif WITH_DTRACE_PROBES
 
 libvirtd_LDADD += \
 	../gnulib/lib/libgnu.la \
-	$(LIBSOCKET) \
 	$(NULL)
 
 remote/libvirtd.conf: remote/libvirtd.conf.in