Remove all optional compile flags from dtwm that are not referenced anywhere, and are unlikely to ever be used

cde/programs/dtwm/WmFeedback.c

@@ -494,9 +494,7 @@ void HideFeedbackWindow (WmScreenData *pSD)
     if (pSD->feedbackWin)
     {
 	XUnmapWindow (DISPLAY, pSD->feedbackWin);
-#ifndef OLD_COLORMAP
 	ForceColormapFocus (ACTIVE_PSD, ACTIVE_PSD->colormapFocus);
-#endif
     }
     pSD->fbStyle = FB_OFF;
 }