When capturing self as weak, remove ?

[angelolloqui]

In Swift, it is common in lambdas to capture self in weak mode and use self? inside the lambda body.

In Kotlin, due to GC, this is unnecesary and the ? must be removed.

Example:

func changePhoto(picture: Data) {
    userService.updateUser(picture: picture).always { [weak self] in
        self?.hasPhoto = true
    }
}

Translates to:

fun changePhoto(picture: Data) {
    userService.updateUser(picture = picture).always {  
        this?.hasPhoto = true
    }
}

But must be

fun changePhoto(picture: Data) {
    userService.updateUser(picture = picture).always {  
        this.hasPhoto = true
    }
}

[angelolloqui]

Fixed with b2fa60f