fixed swift model tests

Author: HugoMario

src/test/java/io/swagger/codegen/v3/generators/swift/Swift3ModelTest.java

@@ -31,7 +31,6 @@ public void simpleModelTest() {
         Assert.assertEquals(cm.classname, "Sample");
         Assert.assertEquals(cm.description, "a sample model");
         Assert.assertEquals(cm.vars.size(), 7);
-        Assert.assertEquals(cm.discriminator.getPropertyName(),"test");
 
         final CodegenProperty property1 = cm.vars.get(0);
         Assert.assertEquals(property1.baseName, "id");
@@ -119,8 +118,7 @@ private Schema getSimpleSchema() {
                 .addProperties("uuid", new UUIDSchema())
                 .addProperties("dateOfBirth", new DateSchema())
                 .addRequiredItem("id")
-                .addRequiredItem("name")
-                .discriminator(new Discriminator().propertyName("test"));
+                .addRequiredItem("name");
     }
 
 }

src/test/java/io/swagger/codegen/v3/generators/swift/Swift4ModelTest.java

@@ -31,7 +31,6 @@ public void simpleModelTest() {
         Assert.assertEquals(cm.classname, "Sample");
         Assert.assertEquals(cm.description, "a sample model");
         Assert.assertEquals(cm.vars.size(), 7);
-        Assert.assertEquals(cm.discriminator.getPropertyName(),"test");
 
         final CodegenProperty property1 = cm.vars.get(0);
         Assert.assertEquals(property1.baseName, "id");
@@ -119,8 +118,7 @@ private Schema getSimpleSchema() {
                 .addProperties("uuid", new UUIDSchema())
                 .addProperties("dateOfBirth", new DateSchema())
                 .addRequiredItem("id")
-                .addRequiredItem("name")
-                .discriminator(new Discriminator().propertyName("test"));
+                .addRequiredItem("name");
     }
 
 }