"Difficult" should not be part of a method's description

Sd1/P/Array/arraycalcSolution/src/main/java/de/hdm_stuttgart/mi/sd1/store/Arraymethods.java

@@ -127,7 +127,6 @@ public class Arraymethods {
   } 
 
   /**
-   * Difficult!
    * 
    * Check whether two arrays contain identical values having
    * identical multiplicity irrespective of ordering. Thus the