Delete black edges on illustrator vector
Hi,
I'm sorry if my question might sound a little stupid but I just begin on Illustrator..
I've download a vector image of sparkles and I'm trying to delete all the black background and edges to keep only the yellow sparkles.
Here is the image :

I've delete the main background but now some there are some edges that I can't delete all in one time.

Is there a way to delete the remaining black easily ?
Thank you so much for your help
