docs: remove second ignore_closures (valhalla#4957)

docs/docs/api/turn-by-turn/api-reference.md

@@ -131,13 +131,12 @@ These options are available for `auto`, `bus`, and `truck` costing methods.
 | `disable_hierarchy_pruning` | Disable hierarchies to calculate the actual optimal route. The default is `false`. **Note:** This could be quite a performance drainer so there is a upper limit of distance. If the upper limit is exceeded, this option will always be `false`. |
 | `top_speed` | Top speed the vehicle can go. Also used to avoid roads with higher speeds than this value. `top_speed` must be between 10 and 252 KPH. The default value is 120 KPH for `truck` and 140 KPH for `auto` and `bus`. |
 | `fixed_speed` | Fixed speed the vehicle can go. Used to override the calculated speed. Can be useful if speed of vehicle is known. `fixed_speed` must be between 1 and 252 KPH. The default value is 0 KPH which disables fixed speed and falls back to the standard calculated speed based on the road attribution. |
-| `ignore_closures` | If set to `true`, ignores all closures, marked due to live traffic closures, during routing. **Note:** This option cannot be set if `location.search_filter.exclude_closures` is also specified in the request and will return an error if it is |
+| `ignore_closures` | If set to `true`, ignores all closures, marked due to live traffic closures, during routing. **Note:** This option cannot be set if `location.search_filter.exclude_closures` is also specified in the request and will return an error if it is. Default is `false` |
 | `closure_factor` | A factor that penalizes the cost when traversing a closed edge (eg: if `search_filter.exclude_closures` is `false` for origin and/or destination location and the route starts/ends on closed edges). Its value can range from `1.0` - don't penalize closed edges, to `10.0` - apply high cost penalty to closed edges. Default value is `9.0`. **Note:** This factor is applicable only for motorized modes of transport, i.e `auto`, `motorcycle`, `motor_scooter`, `bus`, `truck` & `taxi`. |
 | `ignore_restrictions` | If set to `true`, ignores any restrictions (e.g. turn/dimensional/conditional restrictions). Especially useful for matching GPS traces to the road network regardless of restrictions. Default is `false`. |
 | `ignore_oneways` | If set to `true`, ignores one-way restrictions. Especially useful for matching GPS traces to the road network ignoring uni-directional traffic rules. Not included in `ignore_restrictions` option. Default is `false`. |
 | `ignore_non_vehicular_restrictions` | Similar to `ignore_restrictions`, but will respect restrictions that impact vehicle safety, such as weight and size restrictions. |
 | `ignore_access` | Will ignore mode-specific access tags. Especially useful for matching GPS traces to the road network regardless of restrictions. Default is `false`. |
-| `ignore_closures` | Will ignore traffic closures. Default is `false`. |
 | `speed_types` | Will determine which speed sources are used, if available. A list of strings with the following possible values: <ul><li><code>freeflow</code></li><li><code>constrained</code></li><li><code>predicted</code></li><li><code>current</code></li></ul> Default is all sources (again, only if available). |
 
 ###### Other costing options