refactor 42

Author: fishercoder1534

src/main/java/com/fishercoder/solutions/_42.java

@@ -1,17 +1,5 @@
 package com.fishercoder.solutions;
 
-/**
- * 42. Trapping Rain Water
- * Given n non-negative integers representing an elevation map where the width of each bar is 1,
- * compute how much water it is able to trap after raining.
-
- For example,
- Given [0,1,0,2,1,0,1,3,2,1,2,1], return 6.
-
- The above elevation map is represented by array [0,1,0,2,1,0,1,3,2,1,2,1].
- In this case, 6 units of rain water (blue section) are being trapped.
- */
-
 public class _42 {
 
     public static class Solution1 {