[Solved]-How to disable range selector from highstocks charts-Highcharts

You can use for StockChart just like below:

this.chartData = new StockChart({
  title: {
    text: 'Data Chart'
  },
  rangeSelector: {
    selected: 0,
    inputEnabled: false
  },
  series: [{
    tooltip: {
      valueDecimals: 2
    },
    name: 'Chart',
    data: [],
    type: undefined
  }]
});

you can use add inputEnabled:false

rangeSelector : {
   inputEnabled:false
},

The accepted answer will only disable the Range Selector;

If you want to remove it completely, you need:

 rangeSelector: {
    enabled: false
},