remove jupyterlite button entirely

Author: DenisaCG

docs/index.rst

@@ -15,9 +15,6 @@ The extension uses `Blockly <https://developers.google.com/blockly>`_, an open s
 
 Try it directly in your browser using JupyterLite!
 
-.. image:: https://jupyterlite.rtfd.io/en/latest/_static/badge.svg
-   :target: ./lite/lab
-
 .. jupyterlite:: example.jpblockly
    :width: 100%
    :height: 600ptx