If you don't want the icon to appear, you can deactivate WooCommerce if you aren't using it and it will hide the shopping cart. 

If you are using an updated version of the theme, you should noticed a theme options under Appearance / Theme Options / Shopping Cart / WooCommerce with options to hide the icon or change it's style.

For older versions:

If you want to use the plugin without the icon, there is also a way to use CSS to hide as well:

.themo_cart_icon {display: none;}

There is a place to input under Appearance > Theme Options > General > Custom CSS