Remove dead comment.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@1380012 13f79535-47bb-0310-9956-ffa450edef68

Author: garydgregory

src/main/java/org/apache/commons/codec/digest/UnixCrypt.java

@@ -199,7 +199,6 @@ public static String crypt(byte[] original, String salt) {
         if (salt == null) {
             Random randomGenerator = new Random();
             int numSaltChars = SALT_CHARS.length;
-            // Types casts fix two FindBugs report of RV_ABSOLUTE_VALUE_OF_RANDOM_INT.
             salt = "" + SALT_CHARS[randomGenerator.nextInt(numSaltChars)]
                     + SALT_CHARS[randomGenerator.nextInt(numSaltChars)];
         } else if (!salt.matches("^[" + B64.B64T + "]{2,}$")) {