JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>
<br/><!-- Just so that JSFiddle's Result label doesn't overlap the Chart -->
<div id="chartContainer" style="height: 360px; width: 100%;"></div>

JavaScript

var chart = new CanvasJS.Chart("chartContainer", {
	title:{
  	text: "Removing Labels Below Threshold Value"
  },
  data: [
    {
      type: "pie",
      dataPoints: [
        { y: 26, label: "School Aid",  color: "red" },
        { y: 20, label: "Medical Aid", color: "yellow" },
        { y: 5, label: "Debt/Capital", color: "orange" },
        { y: 3, label: "Elected Officials", color: "green" },
        { y: 7, label: "University", color: "aqua" },
        { y: 17, label: "Executive", color: "olive" },
        { y: 22, label: "Other Local Assistance", color: "black"}
      ]
    }		
  ]
});


chart.options.data[0].dataPoints = updateDataPoints(chart);
chart.render();

function updateDataPoints(chart){
  var dps = chart.options.data[0].dataPoints;
  var threshold = 15;
  var updatedDataPoints = [];

  for(var i = 0; i < dps.length; i++) {
    if(dps[i].y > threshold)
      updatedDataPoints.push(dps[i]);
    else
      updatedDataPoints.push(_objectWithoutProperties(dps[i], "label"));
  }
  return updatedDataPoints;
}

function _objectWithoutProperties(obj, keys) { 
  var target = {}; 
  for (var i in obj) { 
    if (keys.indexOf(i) >= 0) continue; 
    if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; 
    target[i] = obj[i]; 
  } 
  return target; 
}