Removed legacy example from README

Author: IdentityDan

README.md

@@ -31,14 +31,6 @@ The Authentication SDK is organized into components that mirror the structure of
 [API documentation](https://auth0.com/docs/auth-api).
 For example:
 
-```python
-from auth0.authentication import Social
-
-social = Social('my-domain.us.auth0.com', 'my-client-id')
-
-social.login(access_token='...', connection='facebook')
-```
-
 If you need to sign up a user using their email and password, you can use the Database object.
 
 ```python