issue-1299 remove unused import

Author: kykrueger

tableauserverclient/server/endpoint/endpoint.py

@@ -2,7 +2,6 @@
 from time import sleep
 from tableauserverclient import datetime_helpers as datetime
 
-import requests
 from packaging.version import Version
 from functools import wraps
 from xml.etree.ElementTree import ParseError