While it’s true that product reviews can be highly valuable for any eCommerce store, there are occasions where you simply don’t need them. Here are 2 methods to disable them:
Disable Reviews in the Settings
You can disable product reviews by turning them off in the settings. Go to WooCommerce > Settings > Products and uncheck Enable product reviews.
Disable Reviews Programatically
For my demo sites I use a multisite installation. To save myself setting this option every time, I just disable reviews globally for products in the theme settings. You can do this with a very simple code snippet.
Add this to your theme or child theme in the functions.php file, or using the Code Snippets plugin.