Remove remix button from README usage section (#1944)

Removed remix button from the usage section.

Author: hshoff

README.md

@@ -55,8 +55,6 @@ to generate your visualization with the benefits of react for updating the DOM.
 
 ## Usage
 
-[![Remix on Glitch](https://cdn.glitch.com/2703baf2-b643-4da7-ab91-7ee2a2d00b5b%2Fremix-button.svg)](https://glitch.com/edit/#!/remix/kind-modem)
-
 Let's make a simple bar graph.
 
 First we'll install the relevant packages: