Remove unnecessary "throws" declarations

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=201058582

javatests/google/registry/flows/EppLoginUserTest.java

@@ -41,7 +41,7 @@ public class EppLoginUserTest extends EppTestCase {
       .build();
 
   @Before
-  public void initTest() throws Exception {
+  public void initTest() {
     User user = getUserService().getCurrentUser();
     persistResource(
         new RegistrarContact.Builder()