You use Flex Builder to delete a view state.

1. With the MXML file open in Design mode, select the view state that you want to delete from the States view (Window > States).
2. Click the Delete State button on the view's toolbar.

   If you attempt to delete a state that other states are based on, a dialog box appears to warn you that the other states will be deleted too. You can cancel the operation or confirm that you want to delete the state.