Revert "Merge #101508: libraw: 0.20.0 -> 0.20.2"

I'm sorry; I didn't notice it contained staging commits.

This reverts commit 17f5305b6c, reversing
changes made to a8a018ddc0.

pkgs/development/libraries/libraw/default.nix

@@ -1,29 +1,25 @@
-{ stdenv, fetchFromGitHub, autoreconfHook, lcms2, pkgconfig }:
+{ stdenv, fetchurl, lcms2, pkgconfig }:
 
 stdenv.mkDerivation rec {
   pname = "libraw";
-  version = "0.20.2";
+  version = "0.20.0";
 
-  src = fetchFromGitHub {
-    owner = "LibRaw";
-    repo = "LibRaw";
-    rev = version;
-    sha256 = "16nm4r2l5501c9zvz25pzajq5id592jhn068scjxhr8np2cblybc";
+  src = fetchurl {
+    url = "https://www.libraw.org/data/LibRaw-${version}.tar.gz";
+    sha256 = "18wlsvj6c1rv036ph3695kknpgzc3lk2ikgshy8417yfl8ykh2hz";
   };
 
   outputs = [ "out" "lib" "dev" "doc" ];
 
   propagatedBuildInputs = [ lcms2 ];
 
-  nativeBuildInputs = [ autoreconfHook pkgconfig ];
+  nativeBuildInputs = [ pkgconfig ];
 
-  enableParallelBuilding = true;
-
-  meta = with stdenv.lib; {
+  meta = {
     description = "Library for reading RAW files obtained from digital photo cameras (CRW/CR2, NEF, RAF, DNG, and others)";
     homepage = "https://www.libraw.org/";
-    license = licenses.gpl2Plus;
-    platforms = platforms.unix;
+    license = stdenv.lib.licenses.gpl2Plus;
+    platforms = stdenv.lib.platforms.unix;
   };
 }