I wouldn't remove it via the template files, I'd use the switch in the admin area.
It's located under Categories/Products :: Product Types. Make sure Product-General is selected and click the "Edit Layout" button in the right hand column. You now have the option to edit pretty much everything on the product info page.
Also, if your not wanting to check the stock levels ... go under Configuration :: Stock and disable stock checking. This is just in case you get anxious on a product and forget the quantity it won't display out of stock.
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