How to delete an album off an iPhone?

Alright so I have an iPhone 4S and summer 2013 I used my PC to put an album of photos on my phone through iTunes that I thought looked cool. Now I absolutely despise these pictures but I can't delete them because they were from the computer and that computer has basically been destroyed, and I have a macbook now. Is there any way for me to delete them?

Added (1). I can't delete them? Thats the problem?

Hit delete

Only by restoring the phone as new.