Update index.mdx

Removed reference to LFC131 course

Signed-off-by: Russell Trow <russell@greensoftware.foundation>

Author: russelltrow

docs/index.mdx

@@ -9,8 +9,6 @@ Do you want to be a part of the green software movement?
 
 If you want to make your software applications more sustainable and build a career in green software, then this training is for you. It will teach you how to build, maintain, and run greener applications regardless of the application domain, industry, organization size or type, programming language, or framework.
 
-If you pass the [associated exam](https://grnsft.org/practitioner/lf-exam), it comes with a certificate of completion from the Linux Foundation. Some employers have created forms to facilitate the administration of credits for completing this course. If your employer is [in this list](https://docs.google.com/document/d/1Jv-f7wGyODzEySQFfVk6Vo_OAHWjf-jAdFmyfDQUgvU/edit?usp=sharing), please click on your organization name to register your credits. If your organization would like to add their form to the list, please get in touch with our team at help@greensoftware.foundation.
-
 ## What is a software practitioner?
 
 A software practitioner is anyone who is involved in the practice of building, deploying, or managing a software application. This includes but is not limited to the following: