pjsip: Remove "contact" type from pjsip.conf.sample

The "contact" object is not meant to be configured from the pjsip.conf
configuration file. It is meant to be created as a result of a registration
and stored elsewhere.

ASTERISK-24085 #close
Reported by: Rusty Newton
........

Merged revisions 431860 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@431861 65c4cc65-6c06-0410-ace0-fbb531ad65f3

configs/samples/pjsip.conf.sample

@@ -795,17 +795,6 @@
                                 ; information. Value is in milliseconds; default
                                 ; is 100 ms.
 
-;==========================CONTACT SECTION OPTIONS=========================
-;[contact]
-;  SYNOPSIS: A way of creating an aliased name to a SIP URI
-;type=  ; Must be of type contact (default: "")
-;uri=   ; SIP URI to contact peer (default: "")
-;expiration_time=       ; Time to keep alive a contact (default: "")
-;qualify_frequency=0    ; Interval at which to qualify a contact (default: "0")
-;outbound_proxy=        ; Outbound proxy used when sending OPTIONS request
-                        ; (default: "")
-
-
 ;==========================AOR SECTION OPTIONS=========================
 ;[aor]
 ;  SYNOPSIS: The configuration for a location of an endpoint