There are two methods to delete your checks:-
Method 1
Step 1: Click on 'Check List'
Step 2: Select checks from the 'Check List'.
Step 3: Click on the 'Delete Icon' from the toolbar.
Method 2
Step 1: Open Check List
Step 2: Choose Check and click on the 3 dots menu in the ' Action' box
Step 3: Click on 'Delete' from the list that appears.
Step 4: Please confirm your action