Is there a way of deleting your old nicknames?

[WelshJellyBelly]

I have changed my nickname a few times

1st i was welshmum23 but was told it was boring
so ive been trying to find a nickname i like
ive decided to stick with this one now so is there a way of deleting the others?

p.s i have never name changed to leave any nasty posts (infact i dont think ive made any nasty posts or disagreed with anyone) ive only namechanged to find a perfect nickname and for the swap posts