fix menubar in DirectDraw triple buffer mode

clean up old #define in sound.cpp

src/Sound.cpp

@@ -387,18 +387,11 @@ inline void interp_push(int ch, int sample)
 	interp[ch]->push(sample);
 }
 
-#ifdef ENHANCED_RATE
-inline int interp_pop(int ch, double rate)
-{
-	return interp[ch]->pop(rate);
-#else
 inline int interp_pop(int ch)
 {
 	return interp[ch]->pop();
-#endif
 }
 
-
 // *** End snd_interp code
 
 static void soundEventGB(u32 address, u8 data)

src/win32/DirectDraw.cpp

@@ -837,10 +837,6 @@ void DirectDrawDisplay::render()
           pDirectDraw->FlipToGDISurface();
           ddsPrimary->SetClipper(ddsClipper);
           hret = ddsPrimary->Blt(&theApp.dest, ddsFlip, NULL, DDBLT_ASYNC, NULL);
-          // if using emulation only, then we have to redraw the menu
-          // everytime. It seems like a bug in DirectDraw to me as we not
-          // overwritting the menu area at all.
-          if(theApp.ddrawUsingEmulationOnly)
           theApp.m_pMainWnd->DrawMenuBar();
         } else
           hret = ddsPrimary->Flip(NULL, 0);