Remove illegal meta.src attributes

pkgs/applications/audio/ladspa-plugins/ladspah.nix

@@ -1,28 +1,17 @@
-{ stdenv, fetchurl, builderDefs }:
+{ runCommand, fetchurl }:
+
+let
 
-let 
   src = fetchurl {
     url = http://www.ladspa.org/ladspa_sdk/ladspa.h.txt;
     sha256 = "1b908csn85ng9sz5s5d1mqk711cmawain2z8px2ajngihdrynb67";
   };
+
 in
-  let localDefs = builderDefs.passthru.function {
-    buildInputs = [];
-    inherit src;
-  };
-  in with localDefs;
-let
-  copyFile = fullDepEntry ("
-    mkdir -p \$out/include
-    cp ${src} \$out/include/ladspa.h
-  ") [minInit defEnsureDir];
-in
-stdenv.mkDerivation {
-  name = "ladspa.h";
-  builder = writeScript "ladspa.h-builder"
-    (textClosure localDefs [copyFile]);
-  meta = {
-    description = "LADSPA format audio plugins";
-    inherit src;
-  };
-}
+
+runCommand "ladspa.h"
+  { meta.description = "LADSPA format audio plugins"; }
+  ''
+    mkdir -p $out/include
+    cp ${src} $out/include/ladspa.h
+  ''