Remove Product from Cart (Magento 1.9)

removeFromCart.php

<?php        
        public function removeFromCart($productId){
        $cart = Mage::helper('checkout/cart');
        $items = $cart->getCart()->getItems();
     
        foreach ($items as $item) 
        {
            if ($item->getProductId() == $productId) {
                $itemId = $item->getItemId();
                $cart->getCart()->removeItem($itemId);
                $item->isDeleted(true);
                $cart->getQuote()->setTotalsCollectedFlag(null)->collectTotals()->save();
                $cart->save();
                Mage::getSingleton('checkout/session')->setCartWasUpdated(true);
                Mage::app()->getResponse()->setRedirect(Mage::getUrl('checkout/cart'));
            }
        }
    }
?>