How to remove h2 “Description” from product pages?

The word “Description” appears twice in succession on every product page, first on the description tab, and again right below it as an h2 heading. It seems redundant, so I want to delete the 2nd occurrence, and also the 2nd occurrence of “Additional information”. I tried using this additional css code I saw in another post, but it also hides all of my other h2 headings. I do not know how to write code, and I would rather delete the headings instead of hiding them. Help please?

/* remove "Description" h2 from description tab */
.woocommerce-tabs #tab-description h2 {
    display: none;
}

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