Qualitia allows you to remove a scenario that does not contain any test cases. If you want to remove a scenario that contains test cases, you need to assign these test cases to a different scenario.

In Qualitia, using Test Cases screen you can remove a scenario.

...

To remove

...

scenario:

1. Click Develop > Test Cases.
   The Test Cases screen is displayed. On the left pane, scenarios are organized in a tree structure and on the right pane, a list of available scenarios are displayed in a tabular format.
2. On the left pane, select the root scenario.
3. On the right pane, select the required scenario.
4. Click Remove.
   The system asks for confirmation about the deletion of the required scenario.
5. Click Yes.

The scenario is removed from the project. After deletion, the scenario is no longer available on the left pane under the root scenario. If you attempt to delete a scenario that has test cases associated with it, the system prevents deleting and shows the appropriate message.  

See also,

Creating a Scenario

Editing a Scenario