pki: T6241: remove debug print statement about updated subsystems

Commit 9f9891a ("pki: T6241: Fix dependency updates on PKI changes") added
a print() statement which notified the users about the subsystems which got
supplied with an updated certificate.

Example:
> PKI: Updating config: interfaces openvpn vtun0 tls certificate openvpn_vtun0
> PKI: Updating config: interfaces openvpn vtun0 tls ca_certificate openvpn_vtun0_1

This is an informational message which should maybe (if needed) be sent to
syslog. But the main issue is that CLI paths are mangled (- to _) which makes
the about print output wrong and could potentially confuse users.

Statement has been commented to be re-enabled for debugging.

src/conf_mode/pki.py

@@ -232,7 +232,7 @@ def get_config(config=None):
 
                         path = search['path']
                         path_str = ' '.join(path + found_path)
-                        print(f'PKI: Updating config: {path_str} {item_name}')
+                        #print(f'PKI: Updating config: {path_str} {item_name}')
 
                         if path[0] == 'interfaces':
                             ifname = found_path[0]