Revert Readme.md changes

Reverts adding archive link to front page.

Author: Stephen Hodgson

README.md

@@ -2,9 +2,7 @@
 This is effectively part of the existing HoloToolkit, but this is the repository that will contain all Unity specific components.
 The HoloToolkit is a collection of scripts and components intended to accelerate development of holographic applications targeting Windows Holographic.
 
-##Current Unity Editor Project Version: 5.5.0f3##
-
-To download the latest or archived versions check out the [HoloToolkit Archive](https://riverar.github.io/HoloToolkit-Unity-Builds)
+**Current Unity Editor Project Version: 5.5.0f3**
 
 **HoloToolkit contains the following feature areas:**