While Removing conenctor in MSTeams, "registerOnRemoveHandler" method is called twice.

Thank You Nikitha-MSFT . I haven't write  2 instance for the method. Also i have referred a link which you had  shared there is   one variable  "removeCalled" which  value is  set as true and  below  that i have  implement my AJAX call.but  then also it's called twice.
below is a sample code :

microsoftTeams.settings.registerOnRemoveHandler(function (removeEvent) {
  var removeCalled = true;  
  // AJAX Call
  $.ajax({
    url: "https://example.com",
    type: "DELETE",
    data: "string",
    contentType: "application/json",
    success: function () {
      removeEvent.notifySuccess();
    },
    error: function () {
      removeEvent.notifyFailure("Failed");
    }
  });
})