slurm: remove obsolete dependencies

libssh and openssl are not required anymore

pkgs/servers/computing/slurm/default.nix

@@ -1,7 +1,7 @@
 { stdenv, fetchFromGitHub, pkgconfig, libtool, curl
-, python, munge, perl, pam, openssl, zlib, shadow, coreutils
+, python, munge, perl, pam, zlib, shadow, coreutils
 , ncurses, libmysqlclient, gtk2, lua, hwloc, numactl
-, readline, freeipmi, libssh2, xorg, lz4, rdma-core, nixosTests
+, readline, freeipmi, xorg, lz4, rdma-core, nixosTests
 # enable internal X11 support via libssh2
 , enableX11 ? true
 }:
@@ -37,22 +37,20 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ pkgconfig libtool ];
   buildInputs = [
-    curl python munge perl pam openssl zlib
+    curl python munge perl pam zlib
       libmysqlclient ncurses gtk2 lz4 rdma-core
       lua hwloc numactl readline freeipmi shadow.su
-  ] ++ stdenv.lib.optionals enableX11 [ libssh2 xorg.xauth ];
+  ] ++ stdenv.lib.optionals enableX11 [ xorg.xauth ];
 
   configureFlags = with stdenv.lib;
     [ "--with-freeipmi=${freeipmi}"
       "--with-hwloc=${hwloc.dev}"
       "--with-lz4=${lz4.dev}"
       "--with-munge=${munge}"
-      "--with-ssl=${openssl.dev}"
       "--with-zlib=${zlib}"
       "--with-ofed=${rdma-core}"
       "--sysconfdir=/etc/slurm"
     ] ++ (optional (gtk2 == null)  "--disable-gtktest")
-      ++ (optional enableX11 "--with-libssh2=${libssh2.dev}")
       ++ (optional (!enableX11) "--disable-x11");