caelum: remove dead package

Last updated Jan 2012, upstream dead. Broken since 2013.
Only dependent was Rigs of Rods.

pkgs/development/libraries/caelum/default.nix

@@ -1,22 +0,0 @@
-{ stdenv, fetchurl, cmake, pkgconfig, ois, ogre, boost }:
-
-stdenv.mkDerivation rec {
-  name = "caelum-0.6.1";
-
-  src = fetchurl {
-    url = "http://caelum.googlecode.com/files/${name}.tar.gz";
-    sha256 = "1j995q1a88cikqrxdqsrwzm2asid51xbmkl7vn1grfrdadb15303";
-  };
-
-  buildInputs = [ ois ogre boost ];
-  nativeBuildInputs = [ cmake pkgconfig ];
-
-  enableParallelBuilding = true;
-
-  meta = {
-    description = "Add-on for the OGRE, aimed to render atmospheric effects";
-    homepage = http://code.google.com/p/caelum/;
-    license = stdenv.lib.licenses.lgpl21Plus;
-    broken = true;
-  };
-}

pkgs/top-level/all-packages.nix

@@ -6172,8 +6172,6 @@ let
     fetchurl = fetchurlBoot;
   };
 
-  caelum = callPackage ../development/libraries/caelum { };
-
   capnproto = callPackage ../development/libraries/capnproto { };
 
   ccnx = callPackage ../development/libraries/ccnx { };