message: remove unused True/False constants
diff: @@ -33,14 +33,6 @@ namespace ospcommon
  /* we consider floating point numbers in that range as valid input numbers */
  static float FLT_LARGE = 1.844E18f;
  - static struct TrueTy {
  - __forceinline operator bool( ) const { return true; }
  - } True MAYBE_UNUSED;
  -
  - static struct FalseTy {
  - __forceinline operator bool( ) const { return false; }
  - } False MAYBE_UNUSED;
  -
  static struct ZeroTy
  {
  __forceinline operator double ( ) const { return 0; }
  