fixes for building wxMSW with --disbale-all-features

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47608 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/app.cpp

@@ -266,11 +266,15 @@ wxPortId wxGUIAppTraits::GetToolkitVersion(int *majVer, int *minVer) const
 #endif
 }
 
+#if wxUSE_TIMER
+
 wxTimerImpl *wxGUIAppTraits::CreateTimerImpl(wxTimer *timer)
 {
     return new wxMSWTimerImpl(timer);
 }
 
+#endif // wxUSE_TIMER
+
 wxEventLoopBase* wxGUIAppTraits::CreateEventLoop()
 {
     return new wxEventLoop;