Update README.rst

Remove the deprecated legacy CI badge

Signed-off-by: Rasmus <[email protected]>

Author: rasmunk

README.rst

@@ -12,11 +12,6 @@ docker-migrid
     :alt: Continuous Integration
 |cibadge|
 
-.. |cilegacybadge| image:: https://github.com/ucphhpc/docker-migrid/actions/workflows/ci-legacy.yml/badge.svg
-    :target: https://github.com/ucphhpc/docker-migrid/actions/workflows/ci-legacy.yml
-    :alt: Continuous Integration - Legacy
-|cilegacybadge|
-
 A containerized version of the middleware `Minimum Intrusion Grid (MiG) <https://sourceforge.net/projects/migrid/>`_ system.
 Code also available on Github in the `migrid-sync <https://github.com/ucphhpc/migrid-sync>`_ repo.