Update AddNumbers.java

Author: angiejones

chapter4/AddNumbers.java

@@ -34,9 +34,4 @@ public static void main(String args[]){
 
         scanner.close();
     }
-
-    public static int calculateSum(int number1, int number2){
-        int sum = number1 + number2;
-        return sum;
-    }
 }