removed dependency on HAVE_LIBNC_DAP define for knowing if dap is made available by cdi

src/cdo_features.cc

@@ -211,9 +211,7 @@ print_features()
 #endif
 #endif
 #endif
-#ifdef HAVE_LIBNC_DAP
-  fprintf(fp, " OPeNDAP");
-#endif
+  if(cdi_has_dap()) fprintf(fp," dap");
 #ifdef HAVE_LIBSZ
   fprintf(fp, " sz");
 #endif