Remove unnecessary "throws" declarations

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

javatests/google/registry/beam/BigqueryTemplatePipelineTest.java

@@ -61,7 +61,7 @@ public class BigqueryTemplatePipelineTest {
   }
 
   @Test
-  public void testEndToEndPipeline() throws Exception {
+  public void testEndToEndPipeline() {
     ImmutableList<TableRow> inputRows =
         ImmutableList.of(
             new TableRow(),