examples: Drop object_events_event_test_CFLAGS

$(AM_CPPFLAGS) already includes $(WARN_CFLAGS), so this is
not doing anything useful.
Signed-off-by: NAndrea Bolognani <abologna@redhat.com>
Acked-by: NMichal Privoznik <mprivozn@redhat.com>

examples/Makefile.am

@@ -67,9 +67,6 @@ domsuspend_suspend_SOURCES = domsuspend/suspend.c
 domtop_domtop_SOURCES = domtop/domtop.c
 hellolibvirt_hellolibvirt_SOURCES = hellolibvirt/hellolibvirt.c
 
-object_events_event_test_CFLAGS = \
-		$(WARN_CFLAGS) \
-		$(NULL)
 object_events_event_test_SOURCES = object-events/event-test.c
 
 openauth_openauth_SOURCES = openauth/openauth.c