Fix dead link

src/data/roadmaps/software-design-architecture/content/programming-paradigms/functional-programming.md

@@ -6,6 +6,5 @@ Functional programming encourages immutability, which means that once a variable
 
 Learn more from the following links:
 
-- [@article@What is Functional Programming?](https://www.codingdojo.com/blog/what-is-functional-programming)
 - [@video@Tutorial - Functional Programming?](https://www.youtube.com/watch?v=dAPL7MQGjyM)
 - [@feed@Explore top posts about Functional Programming](https://app.daily.dev/tags/functional-programming?ref=roadmapsh)