docs: remove badge

Author: xchopin

README.md

@@ -8,10 +8,7 @@
         <img height='20px' src="https://img.shields.io/badge/code_style-Google-green.svg?style=flat" alt="Google Code Style">
  </a>
 
-  
- <a target='_blank' href='https://snyk.io/test/github/Apereo-Learning-Analytics-Initiative/openlrw'> 
-   <img height='20px' src='https://snyk.io/test/github/Apereo-Learning-Analytics-Initiative/openlrw/badge.svg' alt='Security score'>
- </a>
+ 
  <img height='20px' src='https://travis-ci.com/Apereo-Learning-Analytics-Initiative/OpenLRW.svg?branch=master' alt='Travis build status'>
 
  <img height='20px' src='https://sonarcloud.io/images/project_badges/sonarcloud-black.svg' alt='SonarCloud'>