Remove unnecessary "throws" declarations

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

javatests/google/registry/rde/RdeReportActionTest.java

@@ -130,7 +130,7 @@ public class RdeReportActionTest {
   }
 
   @Test
-  public void testRun() throws Exception {
+  public void testRun() {
     createTld("lol");
     RdeReportAction action = createAction();
     action.tld = "lol";