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/misc/emulators/dolphin-emu/master.nix

@@ -1,7 +1,7 @@
 { stdenv, fetchFromGitHub, makeWrapper, makeDesktopItem, pkgconfig, cmake, qt5
 , bluez, ffmpeg, libao, libGLU_combined, pcre, gettext, libXrandr, libusb, lzo
 , libpthreadstubs, libXext, libXxf86vm, libXinerama, libSM, libXdmcp, readline
-, openal, libudev, libevdev, portaudio, curl, alsaLib, miniupnpc, enet, polarssl
+, openal, udev, libevdev, portaudio, curl, alsaLib, miniupnpc, enet, mbedtls
 , soundtouch, sfml, vulkan-loader ? null, libpulseaudio ? null
 
 # - Inputs used for Darwin
@@ -36,10 +36,10 @@ in stdenv.mkDerivation rec {
   buildInputs = [
     curl ffmpeg libao libGLU_combined pcre gettext libpthreadstubs libpulseaudio
     libXrandr libXext libXxf86vm libXinerama libSM readline openal libXdmcp lzo
-    portaudio libusb libpng hidapi miniupnpc enet polarssl soundtouch sfml
+    portaudio libusb libpng hidapi miniupnpc enet mbedtls soundtouch sfml
     qt5.qtbase
   ] ++ stdenv.lib.optionals stdenv.isLinux [
-    bluez libudev libevdev alsaLib vulkan-loader
+    bluez udev libevdev alsaLib vulkan-loader
   ] ++ stdenv.lib.optionals stdenv.isDarwin [
     CoreBluetooth cf-private OpenGL ForceFeedback IOKit
   ];

pkgs/misc/emulators/retroarch/cores.nix

@@ -1,6 +1,6 @@
 { stdenv, fetchgit, fetchFromGitLab, cmake, pkgconfig, makeWrapper, python27, retroarch
 , alsaLib, fluidsynth, curl, hidapi, libGLU_combined, gettext, glib, gtk2, portaudio, SDL
-, ffmpeg, pcre, libevdev, libpng, libjpeg, libudev, libvorbis
+, ffmpeg, pcre, libevdev, libpng, libjpeg, udev, libvorbis
 , miniupnpc, sfml, xorg, zlib }:
 
 let
@@ -149,7 +149,7 @@ in with stdenv.lib.licenses;
     extraBuildInputs = [
       cmake curl libGLU_combined pcre pkgconfig sfml miniupnpc
       gettext glib gtk2 hidapi
-      libevdev libudev
+      libevdev udev
     ] ++ (with xorg; [ libSM libX11 libXi libpthreadstubs libxcb xcbutil ]);
   }).override {
     cmakeFlags = [