docs: remove vpn-blocked docs link

Author: Melissa Thompson

components/downstate/README.md

@@ -7,5 +7,3 @@ Down state is a Spectrum 2 (S2) feature that creates the illusion of components
     - Note that in this case, users are required to develop an implementation to determine the width and height of the component. Assign these values to the `--spectrum-downstate-width` and `--spectrum-downstate-height` custom properties in a `style` attribute on the HTML element to expose them for use in the CSS.
 
 This package is part of the [Spectrum CSS project](https://github.com/adobe/spectrum-css).
-
-See the [Spectrum CSS documentation](https://opensource.adobe.com/spectrum-css/downstate).