i don't think you can do it via Pinescript but that is a TradingView setting on the chart... I have the same issue with one of my indicators printing out all the variables and I'd rather they not show... it's under Chart settings... Status Line... Indicator Values.
Maybe Matt or another PineScripter knows of another solution...
Absolutely count me in on that one. I would LOVE to be able to select which indicator values appear on the chart as well! I run into this issue all the time too.