Revert "Create FindAverage.java"

This reverts commit 5070a0bb28.

Maths/FindAverage.java

@@ -1,25 +0,0 @@
-package Maths;
-
-public class FindAverage {
-
-    //Driver
-    public static void main(String[] args) {
-        int[] array = {2, 4, 10};
-        assert findAverage(array) == 5;
-    }
-
-    /**
-     * find average value of array
-     *
-     * @param array the array contains element and the sum does not 
-     * excess long value limit
-     * @return average value
-     */
-    public static int findAverage(int[] array) {
-        long sum = 0;
-        for (int i = 0 ; i < array.length; ++i) {
-            sum += array[i];
-        }
-        return (int)(sum / array.length);
-    }
-}