By Chloe Stewart Blake Lively has issued a statement and taken down a social media post, which seemingly made fun of Kate Middleton, following the Princess of Wales revealing she has cancer. Taking to her Instagram Story, Blake said: “I’m sure no one cares today but I feel like I have to acknowledge this. I made a silly post around the ‘photoshop fails’ frenzy, and oh man, that post has me mortified today. I’m sorry. Sending love and well wishes to all, always.” The Hollywood actress and wife of Ryan Reynolds jumped on the bandwagon of other celebrities poking fun at Kate Middleton keeping out…