Remove row from tutorials_intro.md

Remove deprecated API from table.

Author: Amanda Butler

docs/api/tutorials_intro.md

@@ -14,8 +14,7 @@ These tutorials and examples show you how to perform specific tasks that use the
 
 | API | Examples |
 | --- | --- |
-| Wait | [Wait example](../apis/wait.html#example) |
-| callback | [Serial passthrough example](../apis/callback.html#serial-passthrough-example-with-callbacks)<br> [Thread example](../apis/callback.html#thread-example-with-callbacks)<br> [Sonar example](../apis/callback.html#sonar-example) |
+| Callback | [Serial passthrough example](../apis/callback.html#serial-passthrough-example-with-callbacks)<br> [Thread example](../apis/callback.html#thread-example-with-callbacks)<br> [Sonar example](../apis/callback.html#sonar-example) |
 | DeepSleepLock | [DeepSleepLock example](../apis/deepsleeplock.html#example) |
 | PowerManagement | [PowerManagement example](../apis/power-management-sleep.html#example) |
 | IdleLoop | [IdleLoop example](../apis/idle-loop.html#example) |