Drop a fallback to using SecureTransport on macOS

Author: illia-v

src/pip/_internal/__init__.py

@@ -1,6 +1,5 @@
 from typing import List, Optional
 
-import pip._internal.utils.inject_securetransport  # noqa
 from pip._internal.utils import _log
 
 # init_logging() must be called before any call to logging.getLogger()

src/pip/_internal/utils/inject_securetransport.py

@@ -0,0 +1 @@
+Drop a fallback to using SecureTransport on macOS as it is not needed anymore.