verilator: shebangs patch is not needed anymore

pkgs/applications/science/electronics/verilator/default.nix

@@ -12,10 +12,6 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
   buildInputs = [ perl flex bison ];
 
-  postInstall = ''
-    sed -i -e '3a\#!/usr/bin/env perl' -e '1,3d' $out/bin/{verilator,verilator_coverage,verilator_profcfunc}
-  '';
-
   meta = {
     description = "Fast and robust (System)Verilog simulator/compiler";
     homepage    = "https://www.veripool.org/wiki/verilator";