Remove unused JingleInitiator type.
Remove unused JingleInitiator type.

It would actually be better if a two-element version of this without the
INVALID element had been used throughout rather than booleans to
represent the direction of a session… but oh well.

mlundblad/telepathy-gabble,mlundblad/telepathy-gabble,Ziemin/telepathy-gabble,mlundblad/telepathy-gabble,Ziemin/telepathy-gabble,Ziemin/telepathy-gabble,Ziemin/telepathy-gabble