fix () : delete export / import user story

src/presentation/maarchRM/UserStory/export/exportRoleInterface.php

-<?php
-
-namespace presentation\maarchRM\UserStory\export;
-
-interface exportRoleInterface
-{
-    /**
-     * Get roles infos
-     *
-     * @uses auth/role/readExport
-     *
-     * @return importExport/Export/listCsv
-     *
-     */
-    public function readExportRoles($limit = null, $ref = null);
-}

src/presentation/maarchRM/UserStory/import/importRoleInterface.php

-<?php
-
-namespace presentation\maarchRM\UserStory\import;
-
-interface importRoleInterface
-{
-    /**
-     * Import a csv file with role informations
-     *
-     * @param resource  $data      Data base64 encoded or not in proper format
-     * @param boolean   $isReset   Reset tables or not
-     *
-     * @uses auth/role/createImport
-     *
-     */
-    public function createImportRoles($data, $isReset = false);
-}