Update tind_client/client.py

Co-authored-by: maría a. matienzo <73732+anarchivist@users.noreply.github.com>

Author: jason-raitz

tind_client/client.py

@@ -186,8 +186,6 @@ def write_search_results_to_file(
         :param str output_file_name: filename for the output XML file.
         :returns int: The number of records written to the file.
         """
-        if not output_file_name.endswith(".xml"):
-            raise ValueError("output_file_name must be a string ending with .xml")
 
         total_hits = len(self.fetch_ids_search(query))
         if total_hits == 0: