1. On the left side of your screen in the black bar, you'll see "Tax Tools" as the last option before Sign Out.
2. Click on "Tax Tools" and then "Tools."
3. In the popup that appears, click "Topic Search" and type in the name of the credit you are trying to delete.
4. The list will filter based on your search. Then click on the credit name to jump to that part of your taxes to delete it.
You could alternatively search for this in the Forms Mode under the same popup where it says "Helpful links" however this is usually not advised unless you know exactly which field or form you'd like to delete.
If you have the specific credit name you are trying to delete, let us know and we can help direct you more specifically.