Hi there Lisa,
Rows can be deleted, just hit the bin icon that correspond to your Row.
And so you can delete an entire Section if you want.
I believe you're referring to this type of issue?
You're doing it in a wrong way, please just have your Image as the Background-image of the section and the title as a Custom Headline element (content) of the section. You can't have a text in your background-image.
Hope this shed some lights.