title: Woocommerce 2.6.2 adds disabled attribute to update cart button
body: <p>I am using Wordpress <code>4.5.3</code> and Woocommerce <code>2.6.2</code> .</p>
  
  <p>Code inside woocommerce/cart/cart.php</p>
  
  <pre><code> &lt;input type="submit" class="button" id="update_cart_button" name="update_cart" value="&lt;?php esc_attr_e( 'Update Cart', 'woocommerce' ); ?&gt;" /&gt;
  
      &lt;?php do_action( 'woocommerce_cart_actions' ); ?&gt;
  
      &lt;?php wp_nonce_field( 'woocommerce-cart' ); ?&gt;
  </code></pre>
  
  <p>Which generates following html:</p>
  
  <pre><code>&lt;input type="submit" class="button" id="update_cart_button" name="update_cart" value="Winkelmand bijwerken" disabled=""&gt;
  &lt;input type="hidden" id="_wpnonce" name="_wpnonce" value="847e1da0f8"&gt;
  &lt;input type="hidden" name="_wp_http_referer" value="/winkelmand/"&gt;
  </code></pre>
  
  <p>So the strange thing is that inside the input field the 'disabled' attribute is added. When i remove the disabled value with developer tools i can click the button and the cart is updated correctly.</p>
  
  <p>So i want to remove this attribute, what i have tried:</p>
  
  <p>Attempt 1</p>
  
  <pre><code>&lt;script&gt;
   document.getElementById('update_cart_button').disabled = false;
  &lt;/script&gt;
  </code></pre>
  
  <p>Attempt 2</p>
  
  <pre><code>&lt;script&gt;
   jQuery('#update_cart_button').prop('disabled', false);
  &lt;/script&gt;
  </code></pre>
  
  <p>Attempt 3</p>
  
  <pre><code>&lt;script&gt;
   jQuery('#update_cart_button').removeAttr('disabled'); 
  &lt;/script&gt;
  </code></pre>
  
  <p>but none of the solutions remove the disabled attribute.</p>