src: remove unused method declaration

PR-URL: nodejs#25329
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

src/node_contextify.h

@@ -29,9 +29,6 @@ class ContextifyContext {
       v8::Local<v8::Object> sandbox_obj, const ContextOptions& options);
   static void Init(Environment* env, v8::Local<v8::Object> target);
 
-  static bool AllowWasmCodeGeneration(
-      v8::Local<v8::Context> context, v8::Local<v8::String>);
-
   static ContextifyContext* ContextFromContextifiedSandbox(
       Environment* env,
       const v8::Local<v8::Object>& sandbox);