lightdm: 1.18.1 -> 1.22.0 (#24545)

Remove patch

pkgs/applications/display-managers/lightdm/default.nix

@@ -4,38 +4,39 @@
 , withQt5 ? false, qtbase
 }:
 
+with stdenv.lib;
+
 let
-  ver_branch = "1.19";
-  version = "1.19.5";
+  ver_branch = "1.22";
+  version = "1.22.0";
 in
 stdenv.mkDerivation rec {
   name = "lightdm-${version}";
 
   src = fetchurl {
     url = "${meta.homepage}/${ver_branch}/${version}/+download/${name}.tar.xz";
-    sha256 = "0gbz8jk1ljh8rwgvldkiqma1k61sd27yh008228ahdqd5i2v1r1z";
+    sha256 = "0a5bvfl2h7r873al6q7c819h0kg564k9fh51rl6489z6lyvazfg4";
   };
 
-  patches = [ ./fix-paths.patch ];
-
+  nativeBuildInputs = [ pkgconfig intltool ];
   buildInputs = [
-    pkgconfig pam libxcb glib libXdmcp itstool libxml2 intltool libxklavier libgcrypt
+    pam libxcb glib libXdmcp itstool libxml2 libxklavier libgcrypt
     qt4 libaudit gcc6
-  ] ++ stdenv.lib.optional withQt5 qtbase;
+  ] ++ optional withQt5 qtbase;
 
   configureFlags = [
     "--localstatedir=/var"
     "--sysconfdir=/etc"
     "--disable-tests"
-  ] ++ stdenv.lib.optional (qt4 != null) "--enable-liblightdm-qt"
-    ++ stdenv.lib.optional withQt5 "--enable-liblightdm-qt5";
+  ] ++ optional (qt4 != null) "--enable-liblightdm-qt"
+    ++ optional withQt5 "--enable-liblightdm-qt5";
 
   installFlags = [
     "sysconfdir=\${out}/etc"
     "localstatedir=\${TMPDIR}"
   ];
 
-  meta = with stdenv.lib; {
+  meta = {
     homepage = https://launchpad.net/lightdm;
     platforms = platforms.linux;
     license = licenses.gpl3;