Revert "Add option for fact cache expiry" (#1636)

* Revert "Add option for fact cache expiry (#1602)"

This reverts commit fb30f65951.

ansible.cfg

@@ -7,9 +7,6 @@ host_key_checking=False
 gathering = smart
 fact_caching = jsonfile
 fact_caching_connection = /tmp
-# Once created, fact cache is never force updated. This is why the tiemeout exists. If you're still getting 
-# stale data in your runs (e.g. stale `etcd_access_addresses`), you might want to use `--flush-cache`. 
-fact_caching_timeout = 7200 # 2 hours
 stdout_callback = skippy
 library = ./library
 callback_whitelist = profile_tasks