customerUpload fix

lib/IntaroCrm/RestApi.php

@@ -232,8 +232,6 @@ class RestApi
     public function customerUpload($customers)
     {
         $dataJson = json_encode($customers);
-        $dataJson = str_replace(self::$jsonReplaceSource, self::$jsonReplaceTarget,
-            $dataJson);
         $this->parameters['customers'] = $dataJson;
 
         $url = $this->apiUrl.'customers/upload';
@@ -498,4 +496,4 @@ class RestApi
     }
 }
 
-?>
+?>