8300125: Serial: Remove unused Generation::reset_saved_marks

Reviewed-by: kbarrett, lkorinth

src/hotspot/share/gc/serial/defNewGeneration.cpp

@@ -772,13 +772,6 @@ void DefNewGeneration::save_marks() {
 }
 
 
-void DefNewGeneration::reset_saved_marks() {
-  eden()->reset_saved_mark();
-  to()->reset_saved_mark();
-  from()->reset_saved_mark();
-}
-
-
 bool DefNewGeneration::no_allocs_since_save_marks() {
   assert(eden()->saved_mark_at_top(), "Violated spec - alloc in eden");
   assert(from()->saved_mark_at_top(), "Violated spec - alloc in from");

src/hotspot/share/gc/serial/defNewGeneration.hpp

@@ -278,7 +278,7 @@ protected:
 
   // Accessing marks
   void save_marks();
-  void reset_saved_marks();
+
   bool no_allocs_since_save_marks();
 
   // Need to declare the full complement of closures, whether we'll

src/hotspot/share/gc/serial/tenuredGeneration.cpp

@@ -500,10 +500,6 @@ void TenuredGeneration::save_marks() {
   _the_space->set_saved_mark();
 }
 
-void TenuredGeneration::reset_saved_marks() {
-  _the_space->reset_saved_mark();
-}
-
 bool TenuredGeneration::no_allocs_since_save_marks() {
   return _the_space->saved_mark_at_top();
 }

src/hotspot/share/gc/serial/tenuredGeneration.hpp

@@ -132,7 +132,7 @@ class TenuredGeneration: public Generation {
   void oop_since_save_marks_iterate(OopClosureType* cl);
 
   void save_marks();
-  void reset_saved_marks();
+
   bool no_allocs_since_save_marks();
 
   inline size_t block_size(const HeapWord* addr) const;

src/hotspot/share/gc/shared/generation.hpp

@@ -333,10 +333,6 @@ class Generation: public CHeapObj<mtGC> {
   // operations to be optimized.
   virtual void save_marks() {}
 
-  // This function allows generations to initialize any "saved marks".  That
-  // is, should only be called when the generation is empty.
-  virtual void reset_saved_marks() {}
-
   // This function is "true" iff any no allocations have occurred in the
   // generation since the last call to "save_marks".
   virtual bool no_allocs_since_save_marks() = 0;