[codegen] Remove unused argument in AssemblerOptions::Default().

Change-Id: I1cdd6e7f761d7fa75fd4ca5331ca2475a4384c30
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1985988
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65591}

src/codegen/assembler.cc

@@ -49,11 +49,9 @@
 namespace v8 {
 namespace internal {
 
-AssemblerOptions AssemblerOptions::Default(
-    Isolate* isolate, bool explicitly_support_serialization) {
+AssemblerOptions AssemblerOptions::Default(Isolate* isolate) {
   AssemblerOptions options;
-  const bool serializer =
-      isolate->serializer_enabled() || explicitly_support_serialization;
+  const bool serializer = isolate->serializer_enabled();
   const bool generating_embedded_builtin =
       isolate->IsGeneratingEmbeddedBuiltins();
   options.record_reloc_info_for_serialization = serializer;

src/codegen/assembler.h

@@ -175,8 +175,7 @@ struct V8_EXPORT_PRIVATE AssemblerOptions {
   // on a function prologue/epilogue.
   bool collect_win64_unwind_info = false;
 
-  static AssemblerOptions Default(
-      Isolate* isolate, bool explicitly_support_serialization = false);
+  static AssemblerOptions Default(Isolate* isolate);
 };
 
 class AssemblerBuffer {