8255721: Remove no-op clean_weak_method_links methods

Reviewed-by: kvn, thartmann

Author: cl4es

src/hotspot/share/oops/methodData.cpp

@@ -1786,27 +1786,7 @@ void MethodData::clean_method_data(bool always_clean) {
 // methods out of MethodData for all methods.
 void MethodData::clean_weak_method_links() {
   ResourceMark rm;
-  for (ProfileData* data = first_data();
-       is_valid(data);
-       data = next_data(data)) {
-    data->clean_weak_method_links();
-  }
-
   CleanExtraDataMethodClosure cl;
   clean_extra_data(&cl);
   verify_extra_data_clean(&cl);
 }
-
-#ifdef ASSERT
-void MethodData::verify_clean_weak_method_links() {
-  ResourceMark rm;
-  for (ProfileData* data = first_data();
-       is_valid(data);
-       data = next_data(data)) {
-    data->verify_clean_weak_method_links();
-  }
-
-  CleanExtraDataMethodClosure cl;
-  verify_extra_data_clean(&cl);
-}
-#endif // ASSERT

src/hotspot/share/oops/methodData.hpp

@@ -238,10 +238,6 @@ class DataLayout {
 
   // GC support
   void clean_weak_klass_links(bool always_clean);
-
-  // Redefinition support
-  void clean_weak_method_links();
-  DEBUG_ONLY(void verify_clean_weak_method_links();)
 };
 
 
@@ -455,10 +451,6 @@ class ProfileData : public ResourceObj {
   // GC support
   virtual void clean_weak_klass_links(bool always_clean) {}
 
-  // Redefinition support
-  virtual void clean_weak_method_links() {}
-  DEBUG_ONLY(virtual void verify_clean_weak_method_links() {})
-
   // CI translation: ProfileData can represent both MethodDataOop data
   // as well as CIMethodData data. This function is provided for translating
   // an oop in a ProfileData to the ci equivalent. Generally speaking,
@@ -2415,7 +2407,6 @@ class MethodData : public Metadata {
 
   void clean_method_data(bool always_clean);
   void clean_weak_method_links();
-  DEBUG_ONLY(void verify_clean_weak_method_links();)
   Mutex* extra_data_lock() { return &_extra_data_lock; }
 };