gpsd: delete useless line

pkgs/servers/gpsd/default.nix

···
 
   # remove binaries for x-less install because xgps sconsflag is partially broken
   postFixup = ''
-    ${if guiSupport then "" else "rm -f $out/bin/xgps*"}
     wrapPythonProgramsIn $out/bin "$out $pythonPath"
   '';