LANG-1296: ArrayUtils.addAll() has unsafe use of varargs

remove SafeVarargs annotation

src/main/java/org/apache/commons/lang3/ArrayUtils.java

@@ -5059,7 +5059,6 @@ public static boolean isNotEmpty(final boolean[] array) {
      * @since 2.1
      * @throws IllegalArgumentException if the array types are incompatible
      */
-    @SafeVarargs
     public static <T> T[] addAll(final T[] array1, final T... array2) {
         if (array1 == null) {
             return clone(array2);