To delete one or more records, first you need to enter the list view edit mode by clicking on the Edit Mode button in your app's toolbar:
 
 
Now you can:
  1. Select the record (or records) you want to delete
  2. Click on the red trash can icon in the toolbar
  3. Confirm your choice

 

Once you are done deleting your records, click the Edit Mode button once again to exit edit mode.

Important note: this action cannot be undone! Once a record has been deleted it cannot be restored.