deleted unneccessary lines, added const to testName and a comment to line 13

Author: mshayriyesaricicek

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

@@ -1,17 +1,15 @@
 // Find the instances of unreachable and redundant code - remove them!
 // The sayHello function should continue to work for any reasonable input it's given.
 
-let testName = "Jerry";
+
 const greeting = "hello";
 
 function sayHello(greeting, name) {
-  const greetingStr = greeting + ", " + name + "!";
   return `${greeting}, ${name}!`;
-  console.log(greetingStr);
 }
 
-testName = "Aman";
+const testName = "Aman";
 
-const greetingMessage = sayHello(greeting, testName);
+const greetingMessage = sayHello(greeting, testName);  // only needed if want to store variable otherwise can delete
 
 console.log(greetingMessage); // 'hello, Aman!'