To remove indicators from your charts, just follow these steps.
In the app
1. Tap on any market to view its chart
2. Tap the 'Expand' button at the bottom right of the chart
3. Tap the 'Layers' button on the bottom left
4. Tap the 'Trash' button next to the indicator you wish to remove
On the web platform
1. On 'Charts', look at the left side of the screen to see your active indicators
2. Click on the X icon next to the indicator you want to remove