Remove unnecessary "throws" declarations

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

javatests/google/registry/request/auth/AuthTest.java

@@ -23,7 +23,7 @@ import org.junit.runners.JUnit4;
 public final class AuthTest {
 
   @Test
-  public void testAuthValues_validConfig() throws Exception {
+  public void testAuthValues_validConfig() {
     for (Auth auth : Auth.values()) {
       RequestAuthenticator.checkAuthConfig(auth.authSettings());
     }