Revert "ed: update to 1.10 (close #3852)"

This reverts commit 60902b97fe4a96d370bc0c5e3690fa45da77d78d. It
breaks building on Darwin:

http://hydra.nixos.org/build/13832410

It also adds a gratuitous dependency to the stdenv bootstrap.

pkgs/applications/editors/ed/default.nix

···
-{ fetchurl, stdenv, lzip }:
+{ fetchurl, stdenv }:
 
 stdenv.mkDerivation rec {
-  version = "1.10";
-  name = "ed-${version}";
+  name = "ed-1.9";
 
   src = fetchurl {
-    url = "mirror://gnu/ed/${name}.tar.lz";
-    sha256 = "16kycdm5fcvpdr41hxb2da8da6jzs9dqznsg5552z6rh28n0jh4m";
+    url = "mirror://gnu/ed/${name}.tar.gz";
+    sha256 = "122syihsx2hwzj75mkf5a9ssiky2xby748kp4cc00wzhmp7p5cym";
   };
 
   /* FIXME: Tests currently fail on Darwin:
···
     compileFlags = [ "CC=${stdenv.cross.config}-gcc" ];
   };
 
-  buildInputs = [ lzip ];
-
   meta = {
     description = "An implementation of the standard Unix editor";
 
···
     '';
 
     license = stdenv.lib.licenses.gpl3Plus;
+
     homepage = http://www.gnu.org/software/ed/;
-    maintainers = with stdenv.lib.maintainers; [ fuuzetsu ];
+
+    maintainers = [ ];
   };
 }