Remove unnecessary "throws" declarations

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

javatests/google/registry/tmch/NordnVerifyActionTest.java

@@ -152,13 +152,13 @@ public class NordnVerifyActionTest {
   }
 
   @Test
-  public void failureVerifyUnauthorized() throws Exception {
+  public void failureVerifyUnauthorized() {
     when(httpResponse.getResponseCode()).thenReturn(SC_UNAUTHORIZED);
     assertThrows(Exception.class, action::run);
   }
 
   @Test
-  public void failureVerifyNotReady() throws Exception {
+  public void failureVerifyNotReady() {
     when(httpResponse.getResponseCode()).thenReturn(SC_NO_CONTENT);
     ConflictException thrown = assertThrows(ConflictException.class, action::run);
     assertThat(thrown).hasMessageThat().contains("Not ready");