chore: remove RPC tests

Author: javier-godoy

src/test/java/com/flowingcode/vaadin/addons/chipfield/integration/IntegrationView.java

@@ -45,14 +45,6 @@ public IntegrationView() {
     field.setItems("Lorem", "Ipsum");
   }
 
-  @Override
-  @ClientCallable
-  public void testCallable(boolean arg) {
-    if (!arg) {
-      throw new IllegalArgumentException();
-    }
-  }
-
   @Override
   @ClientCallable
   public void allowAdditionalItems(boolean value) {

src/test/java/com/flowingcode/vaadin/addons/chipfield/integration/IntegrationViewCallables.java

@@ -23,8 +23,6 @@
 
 public interface IntegrationViewCallables {
 
-  void testCallable(boolean arg);
-
   void addValueChangeListener();
 
   void addItemRemovedListener();

src/test/java/com/flowingcode/vaadin/addons/chipfield/integration/ViewIT.java

@@ -21,9 +21,7 @@
 
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.isEmptyString;
-import static org.junit.Assert.assertThrows;
 import static org.junit.Assert.assertTrue;
-
 import java.util.Arrays;
 import java.util.Collection;
 import org.hamcrest.Matcher;
@@ -48,18 +46,6 @@ public void testUpgradedToCustomElement() {
     assertThat(chipfield, hasBeenUpgradedToCustomElement);
   }
 
-  @Test
-  public void testCallableSuccess() {
-    // test that the callable mechanism works
-    $server.testCallable(true);
-  }
-
-  @Test
-  public void testCallableFailure() {
-    // test that the callable mechanism detect failures
-    assertThrows(RuntimeException.class, () -> $server.testCallable(false));
-  }
-
   private Matcher<Collection<String>> isEqualTo(String... values) {
     return Matchers.equalTo(Arrays.asList(values));
   }