vcl: don't build demos for windows at the moment

as they are broken, see red tinderboxes

Change-Id: I09fed7b4c4dec0bebd9e8f85c6266688cf0d68ea

Repository.mk

@@ -62,7 +62,7 @@ $(eval $(call gb_Helper_register_executables,NONE, \
 	unoidl-read \
 	unoidl-write \
 	xrmex \
-	$(if $(filter-out ANDROID IOS,$(OS)), \
+	$(if $(filter-out ANDROID IOS WNT,$(OS)), \
         svdemo \
         svptest \
         svpclient \

vcl/Module_vcl.mk

@@ -25,7 +25,7 @@ $(eval $(call gb_Module_add_targets,vcl,\
     $(if $(filter DESKTOP,$(BUILD_TYPE)), \
         StaticLibrary_vclmain \
         Executable_ui-previewer) \
-    $(if $(filter-out ANDROID IOS,$(OS)), \
+    $(if $(filter-out ANDROID IOS WNT,$(OS)), \
         Executable_svdemo \
         Executable_svptest \
         Executable_svpclient \