remove wxMSW-specific (but copied into wxPalm too) wxAppTraits::AlwaysYield(), it's useless now that wxEventLoop is in wxBase

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@60734 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/apptbase.h

@@ -26,9 +26,6 @@ public:
     // some opaque data which will be passed later to AfterChildWaitLoop()
     virtual void *BeforeChildWaitLoop() = 0;
 
-    // process pending Windows messages, even in console app
-    virtual void AlwaysYield() = 0;
-
     // called after starting to wait for the child termination, the parameter
     // is the return value of BeforeChildWaitLoop()
     virtual void AfterChildWaitLoop(void *data) = 0;