remove redundant modifiers (support recent checkstyle versions) (closes #284)

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

@@ -81,7 +81,7 @@ public class SerializationUtils {
         final byte[] objectData = serialize(object);
         final ByteArrayInputStream bais = new ByteArrayInputStream(objectData);
 
-        try (final ClassLoaderAwareObjectInputStream in = new ClassLoaderAwareObjectInputStream(bais,
+        try (ClassLoaderAwareObjectInputStream in = new ClassLoaderAwareObjectInputStream(bais,
                 object.getClass().getClassLoader())) {
             /*
              * when we serialize and deserialize an object,

src/main/java/org/apache/commons/lang3/concurrent/Computable.java

@@ -37,5 +37,5 @@ public interface Computable<I, O> {
      * @throws InterruptedException
      *             thrown if the calculation is interrupted
      */
-    O compute(final I arg) throws InterruptedException;
+    O compute(I arg) throws InterruptedException;
 }