Changed delete_row to always get key from record argument, removed unused function

sql/ha_ndbcluster.cc

@@ -1130,25 +1130,6 @@ int ha_ndbcluster::set_primary_key_from_record(NdbOperation *op, const byte *old
   DBUG_RETURN(0);
 }
 
-/*
-int ha_ndbcluster::set_primary_key(NdbOperation *op)
-{
-  DBUG_ENTER("set_primary_key");
-  KEY* key_info= table->key_info + table->primary_key;
-  KEY_PART_INFO* key_part= key_info->key_part;
-  KEY_PART_INFO* end= key_part+key_info->key_parts;
-
-  for (; key_part != end; key_part++) 
-  {
-    Field* field= key_part->field;
-    if (set_ndb_key(op, field, 
-                    key_part->fieldnr-1, field->ptr))
-      ERR_RETURN(op->getNdbError());
-  }
-  DBUG_RETURN(0);
-}
-*/
-
 /*
   Read one record from NDB using primary key
 */