removed example for restricted facts namespace

examples/ansible.cfg

@@ -297,10 +297,6 @@
 # only update this setting if you know how this works, otherwise it can break module execution
 #network_group_modules=['eos', 'nxos', 'ios', 'iosxr', 'junos', 'vyos']
 
-# This keeps facts from polluting the main namespace as variables.
-# Setting to True keeps them under the ansible_facts namespace, the default is False
-#restrict_facts_namespace: True
-
 # When enabled, this option allows lookups (via variables like {{lookup('foo')}} or when used as
 # a loop with `with_foo`) to return data that is not marked "unsafe". This means the data may contain
 # jinja2 templating language which will be run through the templating engine.