Nix-expr style review

Unneded args.something replaced with
args: with args;
line. After this line args is the only place where we can recieve variables from.

Also removed several
buildInputs = [];
lines.

svn path=/nixpkgs/trunk/; revision=10415

pkgs/development/libraries/proj.4/default.nix

@@ -1,14 +1,12 @@
-args:
-args.stdenv.mkDerivation {
+args: with args;
+stdenv.mkDerivation {
   name = "proj-4.5.0";
 
-  src = args.fetchurl {
+  src = fetchurl {
     url = ftp://ftp.remotesensing.org/proj/proj-4.5.0.tar.gz;
     sha256 = "1d2qz0vgp13hkfgaz7hkblhb9w2fh2blbjqz73xdinwc08cmflqv";
   };
 
-  buildInputs =(with args; []);
-
   meta = { 
       description = "Cartographic Projections Library";
       homepage = http://proj.maptools.org;