lib: remove unused NativeModule/NativeModule wraps

We now compile the native modules in C++ so these are no longer
used.

PR-URL: nodejs#24904
Refs:https://github.com/joyeecheung/node/commit/
bd765d6
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>

lib/internal/bootstrap/loaders.js

@@ -262,15 +262,6 @@ NativeModule.getSource = function(id) {
   return NativeModule._source[id];
 };
 
-NativeModule.wrap = function(script) {
-  return NativeModule.wrapper[0] + script + NativeModule.wrapper[1];
-};
-
-NativeModule.wrapper = [
-  '(function (exports, require, module, process, internalBinding) {',
-  '\n});'
-];
-
 const getOwn = (target, property, receiver) => {
   return ReflectApply(ObjectHasOwnProperty, target, [property]) ?
     ReflectGet(target, property, receiver) :