The plugin should be Jetpack Developer Mode aware

We are currently displaying the "account settings" page for our plugin if we detect a Jetpack in Developer Mode.. why?

See: https://github.com/Automattic/woocommerce-services/blob/master/classes/class-wc-connect-settings-pages.php#L133

This seems like code only to support testing - and while it's convenient, it's wholly unnecessary.

Open classes/class-wc-connect-settings-pages.php around line 133 and trace the Jetpack Developer Mode check that displays the account settings page. Confirm the behavior is only testing support, then remove or adjust it so Developer Mode no longer triggers that page; verify the plugin's settings behavior afterward.

Written by the indexing model from the issue text.