fix deprecation warnings in awakened-poe-trade and noita-entangled-worlds

awakened-poe-trade: replace xorg.libXtst/libXt with libxtst/libxt
noita-entangled-worlds: remove redundant useFetchCargoVendor

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

pkgs/awakened-poe-trade/default.nix

@@ -10,7 +10,8 @@
   libGL,
   nodejs,
   electron,
-  xorg,
+  libxtst,
+  libxt,
   wayland,
   libglvnd,
 }:
@@ -114,8 +115,8 @@ stdenv.mkDerivation (finalAttrs: {
     --set LD_LIBRARY_PATH "${
       lib.makeLibraryPath [
         libGL
-        xorg.libXtst
-        xorg.libXt
+        libxtst
+        libxt
         wayland
         libglvnd
       ]