Refactor sayHello function to use template literals

Removed unnecessary variable and console log from sayHello function.

Author: khaliun-dev

Sprint-3/3-dead-code/exercise-1.js

@@ -5,9 +5,9 @@ let testName = "Jerry";
 const greeting = "hello";
 
 function sayHello(greeting, name) {
-  const greetingStr = greeting + ", " + name + "!";
+ 
   return `${greeting}, ${name}!`;
-  console.log(greetingStr);
+ 
 }
 
 testName = "Aman";