MT#62181 hash_table: obsolete allocator

This was probably intended as a helper to facilitate reference counted
pointers, but this isn't used anywhere, and the only "allocator" in use
is the default wrapper around `delete`. If reference counted pointers
are ever relevant, they can be done using a shared_ptr.

Change-Id: I2adb561b76efcaf5fb119939f25a7c2438196a5b

core/hash_table.h

@@ -123,26 +123,12 @@ protected:
     value_list     elmts;
 };
 
-template<class Value>
-class ht_delete
-{
-public:
-    Value* new_elmt(Value* v) {
-	return v;
-    }
-    void dispose(Value* v) {
-	delete v;
-    }
-};
-
-template<class Key, class Value, 
-	 class ElmtAlloc = ht_delete<Value>,
+template<class Key, class Value,
 	 class ElmtCompare = less<Key> >
 class ht_map_bucket: public AmMutex
 {
 public:
     typedef map<Key,Value*,ElmtCompare> value_map;
-    typedef ElmtAlloc                   allocator;
 
     ht_map_bucket(unsigned long id) : id(id) {}
     virtual ~ht_map_bucket() {}
@@ -167,9 +153,8 @@ public:
      * Insert the value into this bucket.
      */
     virtual bool insert(const Key& k, Value* v) {
-	v = ElmtAlloc().new_elmt(v);
 	bool res = elmts.insert(typename value_map::value_type(k,v)).second;
-	if(!res) ElmtAlloc().dispose(v);
+	if(!res) delete v;
 	return res;
     }
 
@@ -183,7 +168,7 @@ public:
 	if(it != elmts.end()){
 	    Value* v = it->second;
 	    elmts.erase(it);
-	    ElmtAlloc().dispose(v);
+	    delete v;
 	    return true;
 	}
 	return false;

core/sip/tr_blacklist.cpp

@@ -75,7 +75,7 @@ bool blacklist_bucket::remove(const bl_addr& addr)
     bl_entry* v = it->second;
     wheeltimer::instance()->remove_timer(v->t);
     elmts.erase(it);
-    allocator().dispose(v);
+    delete v;
     return true;
   }
 

core/sip/tr_blacklist.h

@@ -27,7 +27,6 @@ struct bl_addr_less
 struct bl_entry;
 
 typedef ht_map_bucket<bl_addr,bl_entry,
-		      ht_delete<bl_entry>,
 		      bl_addr_less> bl_bucket_base;
 
 class blacklist_bucket