[cmake] remove DS_OVERRIDE and DS_FINAL

Drop support for override and final keyword discovery since all supported
compiler understand those by now. Further use of DS_OVERRIDE or DS_FINAL
will trigger a compile error.

cmake/modules/DuneStuffMacros.cmake

@@ -71,8 +71,6 @@ Macro(ADD_IF_SUPPORTED dest)
   ENDFOREACH(flag ${ARGN})
 EndMacro(ADD_IF_SUPPORTED)
 
-include(CheckOverrideFinal)
-
 SET( CMAKE_EXPORT_COMPILE_COMMANDS "ON" )
 
 SET( CMAKE_CXX_FLAGS_RELEASE CACHE STRING

config.h.cmake

@@ -28,8 +28,8 @@
 # define LIKWID_PERFMON 1
 #endif
 
-#define DS_OVERRIDE ${DS_OVERRIDE}
-#define DS_FINAL  ${DS_FINAL}
+#define DS_OVERRIDE ; static_assert(false, "Use override instead (21.10.2014)!");
+#define DS_FINAL    ; static_assert(false, "Use final instead (21.10.2014)!");
 #define HAVE_DUNE_FEM_PARAMETER_REPLACE 0
 
 #ifndef HAVE_ALUGRID