Code cleanup

sql/sql_select.cc

@@ -2387,17 +2387,6 @@ void JOIN::exec()
                  );
   exec_inner();
 
-  if (!exec_saved_explain)
-  {
-#if 0
-    save_explain_data(thd->lex->explain, true /* can overwrite */,
-                      need_tmp,
-                      order != 0 && !skip_sort_order,
-                      select_distinct);
-#endif    
-    exec_saved_explain= true;
-  }
-
   DBUG_EXECUTE_IF("show_explain_probe_join_exec_end", 
                   if (dbug_user_var_equals_int(thd, 
                                                "show_explain_probe_select_id", 

sql/sql_select.h

@@ -1349,7 +1349,6 @@ class JOIN :public Sql_alloc
     sjm_lookup_tables= 0;
 
     filesort_found_rows= false;
-    exec_saved_explain= false;
     /* 
       The following is needed because JOIN::cleanup(true) may be called for 
       joins for which JOIN::optimize was aborted with an error before a proper
@@ -1358,13 +1357,6 @@ class JOIN :public Sql_alloc
     table_access_tabs= NULL; 
   }
 
-  /*
-    TRUE <=> There was a JOIN::exec() call, which saved this JOIN's EXPLAIN.
-    The idea is that we also save at the end of JOIN::optimize(), but that
-    might not be the final plan.
-  */
-  bool exec_saved_explain;
-
   int prepare(Item ***rref_pointer_array, TABLE_LIST *tables, uint wind_num,
 	      COND *conds, uint og_num, ORDER *order, bool skip_order_by,
               ORDER *group, Item *having, ORDER *proc_param, SELECT_LEX *select,