Merge pull request #329 from madhawap/master

changes to Certificate removal endpoint, fix for the jira EMM-1490

components/certificate-mgt/org.wso2.carbon.certificate.mgt.cert.admin.api/src/main/java/org/wso2/carbon/certificate/mgt/cert/jaxrs/api/impl/CertificateManagementAdminServiceImpl.java

@@ -139,6 +139,3 @@ public class CertificateManagementAdminServiceImpl implements CertificateManagem
     }
 
 }
-
-//return Response.status(Response.Status.NOT_FOUND).entity("No certificate is found with the given " +
-//        "serial number '" + serialNumber + "'");