Removed the TODO placeholders. (#6442)

Ok to bring this into the next version of ADF.

docs/release-notes/RelNote420.md

@@ -16,7 +16,6 @@ You can contact Francesco Corti (francesco.corti at alfresco.com) for details of
 
 -   [New package versions](#new-package-versions)
 -   [Goals for this release](#goals-for-this-release)
-    -   [TODO](#todo)
 -   [Localisation](#localisation)
 -   [References](#references)
 -   [PR merged](#pr-merged)
@@ -39,10 +38,6 @@ The highlights of this release is mainly about bugfixes and enhancements related
 
 Please report issues with this release in the [issue tracker](https://github.com/Alfresco/alfresco-ng2-components/issues/new). You can collaborate on this release or share feedback by using the discussion tools on [Gitter](http://gitter.im/Alfresco/alfresco-ng2-components).
 
-### TODO
-
-TODO
-
 ## Localisation
 
 This release includes: Arabic, Brazilian Portuguese, Czech, Danish, Dutch, Finnish, French, German, Italian, Japanese, Norwegian (Bokmål), Polish, Russian, Simplified Chinese, Spanish and Swedish versions.