Regardless of any sort of naming issues, deleting the characters is a line that would cause people who end up hit by it to quit the game. Sometimes people have to stop playing for a while, come back months sometimes years later. But if their character they put alot of work into is gone? Bye bye.

Also you are using one of the most popular names in fiction for your character right now. If you were going for a version of that name you shouldn't be surprised if its taken, and even if that level 1 didn't have the name someone else probably would have taken it by now. My name is from a game itself but I wouldn't exactly be asking for characters to get deleted in hopes of being able to use it.