refactor 7

Author: fishercoder1534

src/main/java/com/fishercoder/solutions/_7.java

@@ -1,26 +1,5 @@
 package com.fishercoder.solutions;
 
-/**
- * 7. Reverse Integer
-
- Given a 32-bit signed integer, reverse digits of an integer.
-
- Example 1:
- Input: 123
- Output: 321
-
- Example 2:
- Input: -123
- Output: -321
-
- Example 3:
- Input: 120
- Output: 21
-
- Note:
- Assume we are dealing with an environment which could only store integers within the 32-bit signed integer range: [−231,  231 − 1].
- For the purpose of this problem, assume that your function returns 0 when the reversed integer overflows.
- */
 public class _7 {
 
     public static class Solution1 {