deps: remove broken NamedPropertyDefinerCallbackV2 converter

This removal will be rolled in in a future V8 update too.

Signed-off-by: Joyee Cheung <joyeec9h3@gmail.com>
PR-URL: #65161
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Richard Lau <richard.lau@ibm.com>

Author: joyeecheung

common.gypi

@@ -44,7 +44,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.20',
+    'v8_embedder_string': '-node.21',
 
     ##### V8 defaults for Node.js #####
 

deps/v8/include/v8-template.h

@@ -769,11 +769,6 @@ struct NamedPropertyHandlerConfiguration {
       NamedPropertySetterCallbackV2 value) {
     return value;
   }
-  V8_DEPRECATED("Use NamedPropertySetterCallbackV2 setter instead")
-  static NamedPropertySetterCallbackV2 ConvertSetter(
-      NamedPropertySetterCallback value) {
-    return NamedPropertySetterCallbackV2(value);
-  }
 
   static NamedPropertyDefinerCallbackV2 ConvertDefiner(std::nullptr_t) {
     return nullptr;
@@ -782,11 +777,6 @@ struct NamedPropertyHandlerConfiguration {
       NamedPropertyDefinerCallbackV2 value) {
     return value;
   }
-  V8_DEPRECATED("Use NamedPropertyDefinerCallbackV2 definer instead")
-  static NamedPropertyDefinerCallbackV2 ConvertDefiner(
-      NamedPropertyDefinerCallback value) {
-    return NamedPropertyDefinerCallbackV2(value);
-  }
 
  public:
   // TODO(https://crbug.com/348660658): cleanup once migration to
@@ -900,11 +890,6 @@ struct IndexedPropertyHandlerConfiguration {
       IndexedPropertySetterCallback value) {
     return value;
   }
-  V8_DEPRECATED("Use IndexedPropertySetterCallback setter instead")
-  static IndexedPropertySetterCallback ConvertSetter(
-      IndexedPropertySetterCallbackV2 value) {
-    return IndexedPropertySetterCallback(value);
-  }
 
   static IndexedPropertyDefinerCallback ConvertDefiner(std::nullptr_t) {
     return nullptr;
@@ -913,11 +898,6 @@ struct IndexedPropertyHandlerConfiguration {
       IndexedPropertyDefinerCallback value) {
     return value;
   }
-  V8_DEPRECATED("Use IndexedPropertyDefinerCallback definer instead")
-  static IndexedPropertyDefinerCallback ConvertDefiner(
-      IndexedPropertyDefinerCallbackV2 value) {
-    return IndexedPropertyDefinerCallback(value);
-  }
 
  public:
   // TODO(https://crbug.com/348660658): cleanup once migration to