Thanks for joining this thread, WSW.

If those transactions are posted in your bank feeds, you can batch delete them.  This way, you won't have to remove each entry.

Here's how;

1. Go to Banking from the left navigation bar.
2. Select the account where you post those transactions.
3. Go to the Reviewed tab.
4. Locate and mark the transactions you've added, then click Undo.
   
5. They're posted back to the For Review tab.
6. Locate and mark them.
7. Click the Batch actions drop-down, then select Excluded Selected.
   
8. Go to the Excluded tab, then pick Delete.
   

If that's not the case, you can delete each transaction through the register. Let me show you how:

1. Click the Gear icon at the right top, then choose Chart of Accounts.
   
2. Locate the account, then click View register under ACTION.
3. Click the entry you want to remove, then select Delete.
   
4. Choose Yes to confirm.

You can also refer to this article, Exclude expenses from downloaded bank transactions to learn more about the process above. 

Let me know if you have follow-up questions, and I'm glad to help you out.