remove references to tippy

the project is moving away from Popper so it doesn't make sense to keep it on the website anymore.

Author: FezVrasta

src/pages/docs/v2/tippy.mdx

@@ -14,9 +14,8 @@ import {
 
 In this tutorial you'll learn how to use Popper by building a basic tooltip.
 
-Remember, Popper is not a tooltip library, it's the foundation to build one! If
-what you are looking for is a ready to use tooltip lib, take a look at
-[Tippy.js](../tippy/).
+Remember, Popper is not a tooltip library, it's the foundation to build one!
+Follow the tutorial below to learn how to use Popper.
 
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