no need for Library_regactivex in --disable-activex build

as stated on Repository.mk

Change-Id: Id88c9d1eae27754f10246004ac8d8ae6326ae143

setup_native/Module_setup_native.mk

@@ -28,7 +28,7 @@ $(eval $(call gb_Module_add_targets,setup_native,\
         Library_instooofiltmsi \
 	Library_qslnkmsi \
 	Library_reg4allmsdoc \
-	Library_regactivex \
+	$(if $(DISABLE_ACTIVEX),,Library_regactivex) \
 	Library_regpatchactivex \
 	Library_sdqsmsi \
 	Library_sellangmsi \