8329358: Generational ZGC: Remove the unused method ZPointer::set_remset_bits

Reviewed-by: stefank, eosterlund

Author: lgxbslgx

src/hotspot/share/gc/z/zAddress.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2024, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -248,7 +248,6 @@ class ZPointer : public AllStatic {
   static zaddress uncolor(zpointer ptr);
   static zaddress uncolor_store_good(zpointer ptr);
   static zaddress_unsafe uncolor_unsafe(zpointer ptr);
-  static zpointer set_remset_bits(zpointer ptr);
 
   static bool is_load_bad(zpointer ptr);
   static bool is_load_good(zpointer ptr);

src/hotspot/share/gc/z/zAddress.inline.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2024, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -454,13 +454,6 @@ inline zaddress_unsafe ZPointer::uncolor_unsafe(zpointer ptr) {
   return to_zaddress_unsafe(raw_addr >> ZPointer::load_shift_lookup(raw_addr));
 }
 
-inline zpointer ZPointer::set_remset_bits(zpointer ptr) {
-  uintptr_t raw_addr = untype(ptr);
-  assert(raw_addr != 0, "raw nulls should have been purged in promotion to old gen");
-  raw_addr |= ZPointerRemembered0 | ZPointerRemembered1;
-  return to_zpointer(raw_addr);
-}
-
 inline bool ZPointer::is_load_bad(zpointer ptr) {
   return untype(ptr) & ZPointerLoadBadMask;
 }