Chart.js Remove Error

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.6.0/Chart.js"></script>
<canvas id="myChart"></canvas>

JavaScript

var ctx = document.getElementById('myChart').getContext('2d');
var chart = new Chart(ctx, {
  type: 'bar',
  data: {
    labels: ['1', '2', '3'],
    datasets: [{
      data: [0, 2, 4]
    },{
      data: [1, 3, 5]
    }]
  },
});

// 1. Remove the first data of the second dataset
chart.data.datasets[1].data[1] = 1;
// 2. Remove the first dataset
chart.data.datasets.shift();
// 3. Update the chart
chart.update();