Fix outdated facts argument

This commit fixes an outdated argument in network facts gathering,
it's no longer there and breaks any network_cli model written with rmb.

Author: danielmellado

roles/scaffold_rm_facts/templates/module_utils/network_os/facts/facts.py.j2

@@ -39,9 +39,8 @@ class Facts(FactsBase):
         :rtype: dict
         :return: the facts gathered
         """
-        netres_choices = FactsArgs.argument_spec['gather_network_resources'].get('choices', [])
         if self.VALID_RESOURCE_SUBSETS:
-            self.get_network_resources_facts(netres_choices, FACT_RESOURCE_SUBSETS, resource_facts_type, data)
+            self.get_network_resources_facts(FACT_RESOURCE_SUBSETS, resource_facts_type, data)
 
         if self.VALID_LEGACY_GATHER_SUBSETS:
             self.get_network_legacy_facts(FACT_LEGACY_SUBSETS, legacy_facts_type)