simple-conn: use TP_ERROR instead of TP_ERRORS
simple-conn: use TP_ERROR instead of TP_ERRORS

The latter has been deprecated. Ideally we should sync this file from tp-glib
but the current version depends on tp-glib 0.19.x

freedesktop-unofficial-mirror/telepathy__telepathy-logger,freedesktop-unofficial-mirror/telepathy__telepathy-logger,freedesktop-unofficial-mirror/telepathy__telepathy-logger