Update how-does-rest-api-work.md

Removed the duplicate image from the bottom of the page.

Author: shyambhongle

data/guides/how-does-rest-api-work.md

@@ -16,5 +16,3 @@ tags:
 What are its principles, methods, constraints, and best practices?
 
 I hope the diagram above gives you a quick overview.
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-![](https://assets.bytebytego.com/diagrams/0317-rest-api-authentication-methods.png)