Revert "empathy_call_new_with_streams: prefer StreamedMedia over Call"
Revert "empathy_call_new_with_streams: prefer StreamedMedia over Call"

Default to Call channels again.

https://bugzilla.gnome.org/show_bug.cgi?id=654611

This reverts commit 1cacc0945f81e0513013b83ca7488589dd6c61f7.

Distrotech/telepathy-account-widgets,GNOME/telepathy-account-widgets,GNOME/telepathy-account-widgets,Distrotech/telepathy-account-widgets,GNOME/telepathy-account-widgets