TpsipMediaChannel: handle session termination in a nua_i_terminated callback.
TpsipMediaChannel: handle session termination in a nua_i_terminated callback.

This is to eliminate a warning about the event delivered for a retired NUA handle.

20080318165909-5b6ca-29322f8b0593313b3b47e4888ae197e1b1471306.gz

freedesktop-unofficial-mirror/telepathy__telepathy-rakia,freedesktop-unofficial-mirror/telepathy__telepathy-rakia,freedesktop-unofficial-mirror/telepathy__telepathy-rakia