tests/lib: Stop using tp_connection_new()
tests/lib: Stop using tp_connection_new()

https://bugs.freedesktop.org/show_bug.cgi?id=49372

Distrotech/telepathy-glib,Distrotech/telepathy-glib,Distrotech/telepathy-glib,Distrotech/telepathy-glib,Distrotech/telepathy-glib