SCB-1433 remove the unit test for constant

Signed-off-by: kakulisen <18813972746@163.com>
diff --git a/codegen/src/test/java/org/apache/servicecomb/toolkit/codegen/GeneratorTest.java b/codegen/src/test/java/org/apache/servicecomb/toolkit/codegen/GeneratorTest.java
index b4bdacd..4f18260 100755
--- a/codegen/src/test/java/org/apache/servicecomb/toolkit/codegen/GeneratorTest.java
+++ b/codegen/src/test/java/org/apache/servicecomb/toolkit/codegen/GeneratorTest.java
@@ -17,7 +17,6 @@
 
 package org.apache.servicecomb.toolkit.codegen;
 
-import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.fail;
 
 import java.io.IOException;
@@ -90,13 +89,5 @@
     CodeGenerator unknownCodeGenerator = GeneratorFactory.getGenerator(CodeGenerator.class, "unknown");
     Assert.assertNull(unknownCodeGenerator);
   }
-
-  @Test
-  public void externalConfigGenerator() {
-
-    assertEquals("providerProjectName", GeneratorExternalConfigConstant.PROVIDER_PROJECT_NAME);
-    assertEquals("consumerProjectName", GeneratorExternalConfigConstant.CONSUMER_PROJECT_NAME);
-    assertEquals("modelProjectName", GeneratorExternalConfigConstant.MODEL_PROJECT_NAME);
-  }
 }