You cannot delete the last paragraph symbol of a document. If it's falling off the last page, you can try several tricks:

Set the paragraph spacing before/after to 0
reduce the table row height
use shrink to fit
find a "space" on the page that can be squeezed and do something with paragraph before/after spacing, line spacing, font size, etc.
Adjust margins?

Good luck.

FYI, all of your paragraph formatting is "stored" in those paragraph symbols. Hence their purpose.