As of WooCommerce 3.1, the WooCommerce extension updater (known as the WooCommerce Helper) was moved into the WooCommerce plugin and no longer requires a separate plugin. The menu item to access the new helper screen is shown to any user who has the ‘manage_woocommerce’ capability. You can remove that capability from any admin users that you do not wish to view the extensions menu but that would mean they could not access any WooCommerce settings or post types. Alternatively, you can hide the menu from all but a select group of users using the code snippet below:
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