wireguard: remove dependency on wireguard-go

Prior to this commit, wireguard dependend on wireguard-go.  This
commit removes that unnecessary dependency.

pkgs/tools/networking/wireguard-tools/default.nix

@@ -7,7 +7,6 @@
 , makeWrapper
 , openresolv
 , procps
-, wireguard-go
 }:
 
 stdenv.mkDerivation rec {
@@ -40,10 +39,6 @@ stdenv.mkDerivation rec {
     for f in $out/bin/*; do
       wrapProgram $f --prefix PATH : ${lib.makeBinPath [ procps iproute2 iptables openresolv ]}
     done
-  '' + lib.optionalString stdenv.isDarwin ''
-    for f in $out/bin/*; do
-      wrapProgram $f --prefix PATH : ${wireguard-go}/bin
-    done
   '';
 
   passthru = {