src: remove unneeded explicit V8 flags

PR-URL: #58230
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>

Author: targos

src/node.cc

@@ -847,11 +847,6 @@ static ExitCode InitializeNodeWithArgsInternal(
   // is security relevant, for Node it's less important.
   V8::SetFlagsFromString("--no-freeze-flags-after-init");
 
-  // These features are completed and enabled by default in Chrome, but not
-  // in V8.
-  V8::SetFlagsFromString("--js-explicit-resource-management");
-  V8::SetFlagsFromString("--js-float16array");
-
 #if defined(NODE_V8_OPTIONS)
   // Should come before the call to V8::SetFlagsFromCommandLine()
   // so the user can disable a flag --foo at run-time by passing