Remove unused exception.

Author: Gary Gregory

src/test/java/org/apache/commons/io/monitor/AbstractMonitorTestCase.java

@@ -51,7 +51,7 @@ public abstract class AbstractMonitorTestCase {
     protected final long pauseTime = 100L;
 
     @BeforeEach
-    public void setUp() throws Exception {
+    public void setUp() {
         final IOFileFilter files = FileFilterUtils.fileFileFilter();
         final IOFileFilter javaSuffix = FileFilterUtils.suffixFileFilter(".java");
         final IOFileFilter fileFilter = FileFilterUtils.and(files, javaSuffix);

src/test/java/org/apache/commons/io/serialization/ClosingBase.java

@@ -38,7 +38,7 @@ protected <T extends Closeable> T willClose(final T t) {
     }
 
     @BeforeEach
-    public void setup() throws IOException {
+    public void setup() {
         toClose.clear();
     }