treewide: remove aliases in nixpkgs

This makes the command ‘nix-env -qa -f. --arg config '{skipAliases =
true;}'’ work in Nixpkgs.

Misc...

- qtikz: use libsForQt5.callPackage

  This ensures we get the right poppler.

- rewrites:

  docbook5_xsl -> docbook_xsl_ns
  docbook_xml_xslt -> docbook_xsl

diffpdf: fixup

pkgs/tools/security/pcsctools/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchurl, makeWrapper, pkgconfig, udev, dbus_libs, pcsclite
+{ stdenv, lib, fetchurl, makeWrapper, pkgconfig, udev, dbus, pcsclite
 , wget, coreutils
 , perl, pcscperl, Glib, Gtk2, Pango, Cairo
 }:
@@ -13,7 +13,7 @@ in stdenv.mkDerivation rec {
     sha256 = "0iqcy28pb963ds4pjrpi37577vm6nkgf3i0b3rr978jy9qi1bix9";
   };
 
-  buildInputs = [ udev dbus_libs perl pcsclite ];
+  buildInputs = [ udev dbus perl pcsclite ];
 
   makeFlags = [ "DESTDIR=$(out)" ];