It looks like you can use a Data Transfer action, check this Rich Text control, but don't enter anything.  This clears out the Rich Text control.  There maybe other methods to also do this.

Hi TTN,

You can do this by any one of following ways

1)  you can use DataTransfer  action by mapping RichText with  empty value, as tin have shown.

2) Use action set control value  action and in config under display set HTML value as empty.

let me know if it helps.

Thank You All.

I am using option #2 set HTML to empty