Jquery remove unwanted "" after unwrap

Jquery remove unwanted "" after unwrap

Hi guys,

i am trying to remove unwanted "" generated after using the unwrap element to remove my span tag.
Take a look at my plunker for a better understanding. Just highlight the text around and inspect the html body of the p tag. 

Is there anyway i can clean up the generated "" ?? 

Appreciate the help. Thanks!
Ralee