Set global proxy internal field count based on the global object template.

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index eb1f08a60942d13f71cbb7b9f0e8ab77dcb14451..50cdcf02cd45855bb4264219c2a2b48860f9562f 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -7870,12 +7870,6 @@ class V8_EXPORT ExtensionConfiguration {
   const char** names_;
 };
 
-#ifndef V8_CONTEXT_PROXY_INTERNAL_FIELD_COUNT
-// The number of required internal fields for global proxy objects can be
-// defined by embedder.
-#define V8_CONTEXT_PROXY_INTERNAL_FIELD_COUNT 2
-#endif
-
 /**
  * A sandboxed execution context with its own set of built-in objects
  * and functions.
@@ -8073,9 +8067,6 @@ class V8_EXPORT Context {
     Local<Context> context_;
   };
 
-  static const int kProxyInternalFieldCount =
-      V8_CONTEXT_PROXY_INTERNAL_FIELD_COUNT;
-
  private:
   friend class Value;
   friend class Script;