Update README.md

Author: tannerlinsley

README.md

@@ -36,10 +36,6 @@ Enjoy this library? Try them all! [React Table](https://github.com/tannerlinsley
   <img alt="" src="https://badgen.net/bundlephobia/minzip/react-virtual@latest" />
   </a>
 
-<!-- ## Used By
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-> _These analytics are made available via the awesome [Scarf](https://www.npmjs.com/package/@scarf/scarf) package analytics library_ -->
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 ## Examples
 
 - Fixed Rows/Cols/Grid- [CodeSandbox](https://codesandbox.io/s/github/tannerlinsley/react-virtual/tree/master/examples/fixed) - [Source](./examples/fixed)
@@ -159,8 +155,6 @@ $ npm i --save react-virtual
 $ yarn add react-virtual
 ```
 
-> React Virtual uses [Scarf](https://www.npmjs.com/package/@scarf/scarf) to collect anonymized installation analytics. These analytics help support the maintainers of this library. However, if you'd like to opt out, you can do so by setting `scarfSettings.enabled = false` in your project's `package.json`. Alternatively, you can set the environment variable `SCARF_ANALYTICS=false` before you install.
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 # Why?
 
 React Virtual's most distinguishing feature is that it's just one single custom hook instead of a set of components. In more trendy terms, this means that it is "headless", allowing you to control 100% all of the markup and styles, exactly how you want.