Removed unnecessary symbol from Playdate std

[DidierMalenfant]

This, it turns out, is not needed.

[alerque]

Thanks for taking the time to contribute.

Any idea why this was included in the first place? I don't use Playdate myself so I'm not very familiar with how the SDK works or why this would be needed or not needed. I'm willing to take contributors word for it but a little explanation or links to anything relevant before I pull the trigger might be nice.

[DidierMalenfant]

Any idea why this was included in the first place?

It was purely an error on my part. I came across some code that used this method but it turns out that it's not a standard SDK one, just one they added to the namespace elsewhere.

[alerque]

Oh hey there! I got tripped up because GitHub is trying to say you are a first time contributor. I didn't lookup that the Playdate functions were added by you in the first place.