RemovePage.
        [Preview API] Removes a page from the work item form
        :param str process_id: The ID of the process
        :param str wit_ref_name: The reference name of the work item type
        :param str page_id: The ID of the page

def remove_page(self, process_id, wit_ref_name, page_id):
        """RemovePage.
        [Preview API] Removes a page from the work item form
        :param str process_id: The ID of the process
        :param str wit_ref_name: The reference name of the work item type
        :param str page_id: The ID of the page
        """
        route_values = {}
        if process_id is not None:
            route_values['processId'] = self._serialize.url('process_id', process_id, 'str')
        if wit_ref_name is not None:
            route_values['witRefName'] = self._serialize.url('wit_ref_name', wit_ref_name, 'str')
        if page_id is not None:
            route_values['pageId'] = self._serialize.url('page_id', page_id, 'str')
        self._send(http_method='DELETE',
                   location_id='1cc7b29f-6697-4d9d-b0a1-2650d3e1d584',
                   version='5.0-preview.1',
                   route_values=route_values)