You can't do it so easily. There is a workaround:

Tools|Options|View, set Comments to "None".
To read a comment, RIGHT-click on the cell and choose "Edit Comment".
(When done reading comment, click somewhere else, or hit Escape twice.)

The comment will not appear when you pass your cursor over the cell;
you have to know which cell to right-click.

- David

Giovanni wrote:
How can I change the red triangle to a clear triangle so it will not show up
in the document. I still want the comment to pop up when i click on that
cell. I just do not want the indicator to show.