如何在Swift中删除我的位置的注释？我只想要一个有脉动的点

import UIKit

class ViewController: UIViewController {
    private var pulsatingLayer: CAShapeLayer!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        createPulsatingLayer()
    }
    
    private func createPulsatingLayer() {
        pulsatingLayer = CAShapeLayer()
        let circularPath = UIBezierPath(arcCenter: view.center, radius: 100, startAngle: 0, endAngle: 2 * CGFloat.pi, clockwise: true)
        pulsatingLayer.path = circularPath.cgPath
        pulsatingLayer.strokeColor = UIColor.clear.cgColor
        pulsatingLayer.fillColor = UIColor.red.cgColor
        pulsatingLayer.lineWidth = 10
        pulsatingLayer.lineCap = .round
        pulsatingLayer.position = view.center
        
        view.layer.addSublayer(pulsatingLayer)
        
        animatePulsatingLayer()
    }
    
    private func animatePulsatingLayer() {
        let animation = CABasicAnimation(keyPath: "transform.scale")
        animation.toValue = 1.5
        animation.duration = 1
        animation.timingFunction = CAMediaTimingFunction(name: .easeOut)
        animation.autoreverses = true
        animation.repeatCount = .infinity
        
        pulsatingLayer.add(animation, forKey: "pulsating")
    }
}