update certs

requests/certs.py

@@ -5,7 +5,8 @@
 requests.certs
 ~~~~~~~~~~~~~~
 
-This module returns the preferred default CA certificate bundle.
+This module returns the preferred default CA certificate bundle. There is
+only one — the one from the certifi package.
 
 If you are packaging Requests, e.g., for a Linux distribution or a managed
 environment, you can change the definition of where() to return a separately
@@ -13,13 +14,7 @@ packaged CA bundle.
 """
 import os.path
 
-try:
-    from certifi import where
-except ImportError:
-    def where():
-        """Return the preferred certificate bundle."""
-        # vendored bundle inside Requests
-        return os.path.join(os.path.dirname(__file__), 'cacert.pem')
+from certifi import where
 
 if __name__ == '__main__':
     print(where())