[RESTEASY-2913] Remove JacksonDataTypeTest#testDatatypeNotSupportedDu…

…ration

This test doesn't make sense anymore since it tested scenario that
wasn't valid and is fixed in recent versions of RestEasy.

testsuite/integration-tests/src/test/java/org/jboss/resteasy/test/providers/jackson2/JacksonDatatypeTest.java

@@ -108,16 +108,6 @@ public void testDatatypeNotSupportedDate() throws Exception {
       Assert.assertThat("Wrong conversion of Date", strResponse.matches("^[0-9]*$"), is(true));
    }
 
-   /**
-    * @tpTestDetails Check duration type without datatype supported
-    * @tpSince RESTEasy 3.1.0.CR3
-    */
-   @Test
-   public void testDatatypeNotSupportedDuration() throws Exception {
-      String strResponse = requestHelper("duration", DEFAULT_DEPLOYMENT);
-      Assert.assertThat("Wrong conversion of Duration", strResponse, not(containsString("PT5.000000006S")));
-   }
-
    /**
     * @tpTestDetails Check null optional type without datatype supported
     * @tpSince RESTEasy 3.1.0.CR3