Removes media items by ID from a product.
The removeProductMedia() function returns a Promise that resolves when the
media items with the given IDs are removed from a product with a given ID.
You can remove multiple media items from a product at one time by delimiting the list of products
with commas.
If you do not specify any media IDs, all media items are removed from the product.
Removing media items from a product does not delete the media from the site.
ID of the product from which to remove media items.
Sources of media items already uploaded to the Wix site. If no media is specified, all media items are removed from the product.