lib.licenses: drop in favor of bsd3Lbnl

This is the same license

lib/licenses.nix

@@ -1175,11 +1175,6 @@ lib.mapAttrs mkLicense (
       url = "https://qwt.sourceforge.io/qwtlicense.html";
     };
 
-    radiance = {
-      fullName = "The Radiance Software License, Version 2.0";
-      url = "https://github.com/LBNL-ETA/Radiance/blob/master/License.txt";
-    };
-
     ruby = {
       spdxId = "Ruby";
       fullName = "Ruby License";

pkgs/by-name/ra/radiance/package.nix

@@ -40,7 +40,7 @@ stdenv.mkDerivation (finalAttrs: {
   meta = {
     description = "Validated Lighting Simulation Tool";
     homepage = "https://github.com/LBNL-ETA/Radiance";
-    license = lib.licenses.radiance;
+    license = lib.licenses.bsd3Lbnl;
     maintainers = with lib.maintainers; [ robwalt ];
     mainProgram = "rad";
   };