fix: removed inaccurate comment (#7937)

Signed-off-by: Matt Butcher <matt.butcher@microsoft.com>

pkg/chartutil/coalesce.go

@@ -35,8 +35,6 @@ import (
 //	- A chart has access to all of the variables for it, as well as all of
 //		the values destined for its dependencies.
 func CoalesceValues(chrt *chart.Chart, vals map[string]interface{}) (Values, error) {
-	// create a copy of vals and then pass it to coalesce
-	// and coalesceDeps, as both will mutate the passed values
 	v, err := copystructure.Copy(vals)
 	if err != nil {
 		return vals, err