IPhone 4- Water Damage & SIM Card Removed- Is there any data left on phone?

Hello...I have a IPhone 4 that has water damage and is not working. The SIM card has been removed from the phone and is working in another phone now. I am planning to sell the phone for parts. My questions are:

1. Is there any data left on the phone since I removed the SIM card and has sustained water damage?
2. Is the phone locked or unlocked?

THANKS!!!