How do I delete extra entries under 1099-DIV? Turbotax premier keeps asking me to search for content and won't let me delete extra entries

Not sure what you mean by "extra entries", but you can simply delete the Form 1099-DIV and re-enter it in the 1099-DIV interview.

See: How do I delete forms in TurboTax Online?  for instructions (or How do I delete forms in TurboTax Desktop (CD/Download)?).