Hide upgrade message on recaptcha plugin

Plugin URL: https://wordpress.org/plugins/google-captcha/
Site: http://yourtechadvisors.com
This plugin is great. The only downside is that it adds an annoying upgrade message to the top of your plugins page. Clicking the X/Close button will hide it for a little bit, but it will be back soon enough. Can you please right me some code to get rid of it?

Thanks, support access is open.