[CartBundle] Removed redundant cart refresh

Cart refresh is already handled by RefreshCartListener which subscribes to SyliusCartEvents::CART_CHANGE. That event is already dispatched along cart-changing events such as SyliusCartEvents::ITEM_REMOVE_INITIALIZE and therefor refreshCart() should be removed from CartListener
Merge pull request #1322 from boskee/remove-extra-refresh

[CartBundle] Removed redundant cart refresh