samba: 4.13.7 -> 4.14.4

fixes https://www.samba.org/samba/security/CVE-2021-20254.html

(cherry picked from commit 2db53555ee297acb1dbce22e4342ac6f37e14407)

pkgs/servers/samba/4.x.nix

@@ -44,11 +44,11 @@ with lib;
 
 stdenv.mkDerivation rec {
   pname = "samba";
-  version = "4.13.7";
+  version = "4.14.4";
 
   src = fetchurl {
     url = "mirror://samba/pub/samba/stable/${pname}-${version}.tar.gz";
-    sha256 = "1ajvr5hzl9kmrf77hb9c71zvnm8j0xgy40nqfjz4f407cw470zaf";
+    sha256 = "1fc9ix91hb1f35j69sk7rsi9pky2p0vsmw47s973bx801cm0kbw9";
   };
 
   outputs = [ "out" "dev" "man" ];
@@ -58,8 +58,6 @@ stdenv.mkDerivation rec {
     ./patch-source3__libads__kerberos_keytab.c.patch
     ./4.x-no-persistent-install-dynconfig.patch
     ./4.x-fix-makeflags-parsing.patch
-    # Backport, should be removed for version 4.14
-    ./0001-lib-util-Standardize-use-of-st_-acm-time-ns.patch
   ];
 
   nativeBuildInputs = [