Cleanup volto-slate from README

README.md

@@ -31,7 +31,6 @@ The [eea.kitkat](https://github.com/eea/eea.kitkat) Plone add-on is the backend
 1. [![Releases](https://img.shields.io/github/v/release/eea/volto-widget-toggle)](https://github.com/eea/volto-widget-toggle/releases) [![Pipeline](https://ci.eionet.europa.eu/buildStatus/icon?job=volto-addons%2Fvolto-widget-toggle%2Fmaster&subject=master)](https://ci.eionet.europa.eu/view/Github/job/volto-addons/job/volto-widget-toggle/job/master/display/redirect) [![Pipeline](https://ci.eionet.europa.eu/buildStatus/icon?job=volto-addons%2Fvolto-widget-toggle%2Fdevelop&subject=develop)](https://ci.eionet.europa.eu/view/Github/job/volto-addons/job/volto-widget-toggle/job/develop/display/redirect) [@eeacms/volto-widget-toggle](https://github.com/eea/volto-widget-toggle)
 1. [![Releases](https://img.shields.io/github/v/release/eea/volto-widget-temporal-coverage)](https://github.com/eea/volto-widget-temporal-coverage/releases) [![Pipeline](https://ci.eionet.europa.eu/buildStatus/icon?job=volto-addons%2Fvolto-widget-temporal-coverage%2Fmaster&subject=master)](https://ci.eionet.europa.eu/view/Github/job/volto-addons/job/volto-widget-temporal-coverage/job/master/display/redirect) [![Pipeline](https://ci.eionet.europa.eu/buildStatus/icon?job=volto-addons%2Fvolto-widget-temporal-coverage%2Fdevelop&subject=develop)](https://ci.eionet.europa.eu/view/Github/job/volto-addons/job/volto-widget-temporal-coverage/job/develop/display/redirect) [@eeacms/volto-widget-temporal-coverage](https://github.com/eea/volto-widget-temporal-coverage)
 1. [![Releases](https://img.shields.io/github/v/release/eea/volto-widget-geolocation)](https://github.com/eea/volto-widget-geolocation/releases) [![Pipeline](https://ci.eionet.europa.eu/buildStatus/icon?job=volto-addons%2Fvolto-widget-geolocation%2Fmaster&subject=master)](https://ci.eionet.europa.eu/view/Github/job/volto-addons/job/volto-widget-geolocation/job/master/display/redirect) [![Pipeline](https://ci.eionet.europa.eu/buildStatus/icon?job=volto-addons%2Fvolto-widget-geolocation%2Fdevelop&subject=develop)](https://ci.eionet.europa.eu/view/Github/job/volto-addons/job/volto-widget-geolocation/job/develop/display/redirect) [@eeacms/volto-widget-geolocation](https://github.com/eea/volto-widget-geolocation)
-1. [![Releases](https://img.shields.io/github/v/release/eea/volto-slate)](https://github.com/eea/volto-slate/releases) [![Pipeline](https://ci.eionet.europa.eu/buildStatus/icon?job=volto-addons%2Fvolto-slate%2Fmaster&subject=master)](https://ci.eionet.europa.eu/view/Github/job/volto-addons/job/volto-slate/job/master/display/redirect) [![Pipeline](https://ci.eionet.europa.eu/buildStatus/icon?job=volto-addons%2Fvolto-slate%2Fdevelop&subject=develop)](https://ci.eionet.europa.eu/view/Github/job/volto-addons/job/volto-slate/job/develop/display/redirect) [volto-slate:asDefault](https://github.com/eea/volto-slate)
 1. [![Releases](https://img.shields.io/github/v/release/eea/volto-slate-metadata-mentions)](https://github.com/eea/volto-slate-metadata-mentions/releases) [![Pipeline](https://ci.eionet.europa.eu/buildStatus/icon?job=volto-addons%2Fvolto-slate-metadata-mentions%2Fmaster&subject=master)](https://ci.eionet.europa.eu/view/Github/job/volto-addons/job/volto-slate-metadata-mentions/job/master/display/redirect) [![Pipeline](https://ci.eionet.europa.eu/buildStatus/icon?job=volto-addons%2Fvolto-slate-metadata-mentions%2Fdevelop&subject=develop)](https://ci.eionet.europa.eu/view/Github/job/volto-addons/job/volto-slate-metadata-mentions/job/develop/display/redirect) [@eeacms/volto-slate-metadata-mentions](https://github.com/eea/volto-slate-metadata-mentions)
 1. [![Releases](https://img.shields.io/github/v/release/eea/volto-slate-footnote)](https://github.com/eea/volto-slate-footnote/releases) [![Pipeline](https://ci.eionet.europa.eu/buildStatus/icon?job=volto-addons%2Fvolto-slate-footnote%2Fmaster&subject=master)](https://ci.eionet.europa.eu/view/Github/job/volto-addons/job/volto-slate-footnote/job/master/display/redirect) [![Pipeline](https://ci.eionet.europa.eu/buildStatus/icon?job=volto-addons%2Fvolto-slate-footnote%2Fdevelop&subject=develop)](https://ci.eionet.europa.eu/view/Github/job/volto-addons/job/volto-slate-footnote/job/develop/display/redirect) [@eeacms/volto-slate-footnote](https://github.com/eea/volto-slate-footnote)
 1. [![Releases](https://img.shields.io/github/v/release/eea/volto-slate-zotero)](https://github.com/eea/volto-slate-zotero/releases) [![Pipeline](https://ci.eionet.europa.eu/buildStatus/icon?job=volto-addons%2Fvolto-slate-zotero%2Fmaster&subject=master)](https://ci.eionet.europa.eu/view/Github/job/volto-addons/job/volto-slate-zotero/job/master/display/redirect) [![Pipeline](https://ci.eionet.europa.eu/buildStatus/icon?job=volto-addons%2Fvolto-slate-zotero%2Fdevelop&subject=develop)](https://ci.eionet.europa.eu/view/Github/job/volto-addons/job/volto-slate-zotero/job/develop/display/redirect) [@eeacms/volto-slate-zotero](https://github.com/eea/volto-slate-zotero)