x11: replace its usage by xlibsWrapper directly

Scilab note: the parameters already had pointed to nonexistent dirs
before this set of refactoring. But that config wasn't even used by
default.

pkgs/games/zoom/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, perl, expat, x11, freetype }:
+{ stdenv, fetchurl, perl, expat, xlibsWrapper, freetype }:
 
 # !!! assert freetype == xlibs.freetype
 
@@ -10,7 +10,7 @@ stdenv.mkDerivation {
     sha256 = "1g6van7f7sg3zfcz80mncnnbccyg2hnm0hq4x558vpsm0lf7z5pj";
   };
   
-  buildInputs = [ perl expat x11 freetype ];
+  buildInputs = [ perl expat xlibsWrapper freetype ];
   
   # Zoom doesn't add the right directory in the include path.
   CFLAGS = [ "-I" (freetype + "/include/freetype2") ];