bootstrap: move global initialization to js

PR-URL: #43625
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>

lib/internal/bootstrap/node.js

@@ -402,6 +402,7 @@ function setupGlobalProxy() {
     enumerable: false,
     configurable: true
   });
+  globalThis.global = globalThis;
 }
 
 function setupBuffer() {

src/node.cc

@@ -342,11 +342,6 @@ MaybeLocal<Value> Environment::BootstrapInternalLoaders() {
 MaybeLocal<Value> Environment::BootstrapNode() {
   EscapableHandleScope scope(isolate_);
 
-  Local<Object> global = context()->Global();
-  // TODO(joyeecheung): this can be done in JS land now.
-  global->Set(context(), FIXED_ONE_BYTE_STRING(isolate_, "global"), global)
-      .Check();
-
   // process, require, internalBinding, primordials
   std::vector<Local<String>> node_params = {
       process_string(),