Delete occurrences of an element if it occurs more than n t

My:
import scala.collection.mutable.ListBuffer

object EnoughIsEnough {
  def deleteNth(elements: List[Int], maxOccurrences: Int): List[Int] = {
    var l =new ListBuffer[Int].empty:++(elements)
    l.reverse.foreach(x=>{
      if(l.count(y=>y==x)>maxOccurrences)
        l.remove(l.lastIndexOf(x))
    })
    l.toList
  }
}

Other:
object EnoughIsEnough {

  def deleteNth(elements: List[Int], max: Int): List[Int] =
    elements
      .foldLeft(List[Int]()) {
        case (xs, x) if xs.count(_ == x) < max => x :: xs
        case (xs, _)                           => xs
      }.reverse
}