WooCommerce - Removing a product from the cart programatically

functions.php

<?php
add_action( 'template_redirect', 'remove_product_from_cart' );

function remove_product_from_cart() {
	// Run only in the Cart or Checkout Page
	if( is_cart() || is_checkout() ) {
		// Set the product ID to remove
		$prod_to_remove = 58;

		// Cycle through each product in the cart
		foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
			// Get the Product ID
			$prod_id = ( isset( $cart_item['variation_id'] ) && $cart_item['variation_id'] != 0 ) ? $cart_item['variation_id'] : $cart_item['product_id'];

			// Check to see if IDs match and remove it from the cart
			if( $prod_to_remove == $prod_id ) {
				$prod_unique_id = WC()->cart->generate_cart_id( $prod_id );
				WC()->cart->set_quantity( $cart_item_key, $cart_item['quantity'] - 1, true  );
				break;
			}
		}

	}
}