uncompleted retire duplicates prior to importing

//STARTS HERE This is the array that I want to import. It has been transformed and parsed By your method.
//Iwant to retire certain records that are duplicates
<!DOCTYPE html>
<html>
  <head>
    <title>Archivos itau</title>

    <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.6.0/underscore-min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/accounting.js/0.4.1/accounting.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/datejs/1.0/date.min.js"></script>


<script>
//File: myscript.js
 var radioValue;
$(function(){
   var dbid = "bj.....";
  var dbidTable = "bj...";
  var apptoken = "b6.....";
  $.ajaxSetup({data: {apptoken: apptoken}});

  $(document).ready(function(){
        $("input[type='button']").click(function(){
             radioValue = $("input[name='itau']:checked").val();
             alert(radioValue);
           });
        alert(radioValue);
      });

  var parseFile = function(id) {
    return $.Deferred(function(dfd) {
      $("#" + id).on("change", function(){
          var reader = new FileReader();
          reader.onload = function () {

            var dsv = d3.dsv(";", "text/plain");//creates a parser with ";""
            var header = "Data_Mov;Historico;Valor"//creates a header cause text has no header
            var data = dsv.parse(header + "\n" + reader.result);
            dfd.resolve(data);
          };
        reader.readAsText(this.files[0]);
      });
    }).promise();
  };

  parseFile("myFile").then(function(data){
  	var csv_array = [];
    console.log(JSON.stringify(data, null, "  "));
    data.forEach(function(row) {
      var csv_line = [];

      csv_line.push(radioValue);
      csv_line.push(row["Data_Mov"]);
      csv_line.push(row["Historico"]);
      csv_line.push(row["Valor"]);
      csv_line.push(row["Data_Mov"] + "-" + row["Historico"] + "-" + row["Valor"]);//creates a unique field


      csv_array.push('"' + csv_line.join('","') + '"');
    });
    console.log(csv_array.join("\n"));
    alert("CONSOLA MIRA QUE BONITO");

    var csv_data = csv_array.join("\n");

    //In this moment I think I have to variables csv_array that is json comparable, and csv_data that can be imported.
    //Ido a do query I only need 1 field to compare I include [Record ID]

    var promise = $.get(dbidTable, {
    	act: "API_DoQuery",
    	clist: "3.57",
      options: "num-10"
    });

  $.when(promise).then(function(xml) {
    alert("all done");
    console.dirxml(xml);
    console.log(promise);
    }).get();

    //something like this is supposed to convert XML toJson Array??

    $.get("promise",function(xml){
    var json_data = $.xml2json(promise);
    var jason_parse_data = JSON.parse(json_data)
     alert(json.message);
     //test if it is a Json Object o creepy thing
     console.log(json_parse_data);
      });
    //Have to compare csv_array with jason_data using unnderscore reject as suggested By Dan
    //Have to compare 5 column of csv_array with 2 column of json_data

	// var new_csv_array = _.reject(jason_data, predicate, [context]);

	// // Have no idea of predicate and Context, I am stuck or have been a long time ago
	// // ...result

	// var new_csv_data = new_csv_array.join("\n");
 //  var promise2 = $.post(dbidTable, {
 //      act: "API_ImportFromCSV",
 //      records_csv: new_csv_data,
 //      clist: "117.27.9.59.57" //match Array order with fids of my table

 //    });
});
});
</script>
  </head>

  <body>
<h4>Selecione a conta Itau.</h4>
    <p>
        <label><input type="radio" name="itau" value="2">Itau Impostos: 705-52464-3</label>
        <label><input type="radio" name="itau" value="1">Itau Normal: 705-45669-7</label>
    </p>
    <p><input type="button" value="ENVIAR"></p>

    <input type="file" id="myFile" accept=".txt">
  </body>
</html>