Cleanups (LINT_INIT & --debug-mutex-deadlock-detector

- Removed duplicate entry for --debug-mutex-deadlock-detector
- Fixed wrong usage of LINT_INIT

sql/mysqld.cc

@@ -7297,13 +7297,6 @@ struct my_option my_long_options[]=
    &max_binlog_dump_events, &max_binlog_dump_events, 0,
    GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
 #endif /* HAVE_REPLICATION */
-#ifdef SAFE_MUTEX
-  {"debug-mutex-deadlock-detector", 0,
-   "Enable checking of wrong mutex usage.",
-   &safe_mutex_deadlock_detector,
-   &safe_mutex_deadlock_detector,
-   0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
-#endif
   {"debug-no-sync", 0,
    "Disables system sync calls. Only for running tests or debugging!",
    &my_disable_sync, &my_disable_sync, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},

sql/opt_range.cc

@@ -7501,7 +7501,7 @@ SEL_TREE *Item_bool_func::get_full_func_mm_tree(RANGE_OPT_PARAM *param,
 		          param->current_table);
 #ifdef HAVE_SPATIAL
   Field::geometry_type sav_geom_type;
-  LINT_INIT(sav_geom_type);
+  LINT_INIT_STRUCT(sav_geom_type);
 
   if (field_item->field->type() == MYSQL_TYPE_GEOMETRY)
   {