Cristian,
I just wanted to chime in here to let you know why WooCommerce needs Jetpack for some features.
Jetpack is basically a bridge between your site and the servers of WordPress.com. The WordPress.com servers are used in this way so that all the data crunching and power behind those features can be done quickly and efficiently rather than making your site (and your hosting server) do all of the work.
For an example, there are several WooCommerce features that exist that use this bridge to WordPress.com in order to quickly serve information about products, orders, customers, etc. in a way that is much, much faster than running it from your own server’s database every single time.
As Stef mentioned, the notices are there because some of the features from WooCommerce you’ve decided to use require that Jetpack connection in order to work properly and efficiently.
I realize that this path may not be the best for you and your site, and you are definitely welcome to find a better solution for your ecommerce needs – I just wanted to make sure and explain exactly why this Jetpack requirement exists and why you are seeing these notices.