Remove unused greetingStr and unreachable console.log in exercise-1

Author: BrianY315

dead-code/exercise-1.js

@@ -5,9 +5,7 @@ let testName = "Jerry";
 const greeting = "hello";
 
 function sayHello(greeting, name) {
-  const greetingStr = greeting + ", " + name + "!";
   return `${greeting}, ${name}!`;
-  console.log(greetingStr);
 }
 
 testName = "Aman";