You can view and edit the queue in the app by following the steps below:
1. Select the 'Now Playing' view at the bottom of the screen when a track is playing
2. Swipe left once the Now Playing screen is open. You'll then be able to see the queue
3. Select the 3 dots in the top right hand corner and then select 'Edit queue'
4. After pressing 'edit queue' you will be able to delete tracks in the queue