You should delete it!
I came across a new (to me) subject today while scanning the agents' posts... Rachelle Gardner talked about foreshadowing vs telegraphing.
There are a few surprises hiding on the pages of my WIP. It's not really a suspense novel, but I still want my readers to be surprised at the proper time. Rachelle's post discusses whether or not, and how much hinting should be included in the body of your ms.
I found it very enlightening, as it is a subject I have not yet seen discussed. Check it out...