removing python 3.6 compat

pytak/client_functions.py

@@ -31,6 +31,7 @@
 import sys
 import warnings
 
+from asyncio import get_running_loop
 from configparser import ConfigParser, SectionProxy
 from urllib.parse import ParseResult, urlparse
 from typing import Any, Tuple, Union
@@ -47,13 +48,6 @@
 
 from pytak.crypto_functions import convert_cert
 
-# DEPRECATED Python 3.6 support for asyncio get_running_loop().
-if sys.version_info[:2] >= (3, 7):  # pragma: no cover
-    from asyncio import get_running_loop
-else:  # pragma: no cover
-    warnings.warn("Using Python < 3.7, consider upgrading Python.")
-    from asyncio import get_event_loop as get_running_loop
-
 
 def get_cot_url(config) -> ParseResult:
     """Verify and parse a raw COT_URL."""