README: ipinfo.io is now only used by 'ucsf-vpn details'

README.md

@@ -240,12 +240,8 @@ organization) to check whether there is a working internet connection or not.
 Environment variable `UCSF_VPN_PING_SERVER` can be use to specify a different
 ping server, e.g. `UCSF_VPN_PING_SERVER=www.ucsf.edu`.
 
-The `ucsf-vpn` software also queries the https://ipinfo.io/ service to infer
-whether a VPN connection is established or not, and to provide public IP
-information on your current internet connection.  To disable this check, use
-`--validate=pid`, or environment variable `UCSF_VPN_VALIDATE=pid`, which
-uses the PID file of OpenConnect to decide whether a VPN connection is
-established or not.
+The `ucsf-vpn details` queries the https://ipinfo.io/ service for
+information on the current internet connection.
 
 The `ucsf-vpn` software _neither_ collects nor stores your local or UCSF
 credentials.

README.md.tmpl

@@ -131,12 +131,8 @@ organization) to check whether there is a working internet connection or not.
 Environment variable `UCSF_VPN_PING_SERVER` can be use to specify a different
 ping server, e.g. `UCSF_VPN_PING_SERVER=www.ucsf.edu`.
 
-The `ucsf-vpn` software also queries the https://ipinfo.io/ service to infer
-whether a VPN connection is established or not, and to provide public IP
-information on your current internet connection.  To disable this check, use
-`--validate=pid`, or environment variable `UCSF_VPN_VALIDATE=pid`, which
-uses the PID file of OpenConnect to decide whether a VPN connection is
-established or not.
+The `ucsf-vpn details` queries the https://ipinfo.io/ service for
+information on the current internet connection.
 
 The `ucsf-vpn` software _neither_ collects nor stores your local or UCSF
 credentials.