async function handleRemoveFromCart(c) {
  const body = await c.req.parseBody();
  const { sku } = body;

  const items = readFromCookie(c);

  const lineItem = items.find(i => i.sku === sku);
  if (lineItem) {
    const index = items.indexOf(lineItem);
    items.splice(index, 1);
  }

  writeToCookie(items, c);
}
Handles removing an item from the cart.
@param {HonoContext} c - The hono context.