code: func deleteTaintsByKey(taints []corev1.Taint, taintKey string) ([]corev1.Taint, bool) {
  	newTaints := []corev1.Taint{}
  	deleted := false
  	for i := range taints {
  		if taintKey == taints[i].Key {
  			deleted = true
  			continue
  		}
  		newTaints = append(newTaints, taints[i])
  	}
  	return newTaints, deleted
  }
docs: // DeleteTaintsByKey removes all the taints that have the same key to given taintKey