Remove Hyena from Makefile.
Remove Hyena from Makefile.

The Hyena projects are referenced in F-Spot.sln so there is no need to
build them again in lib/Makefile.

mono/f-spot,mans0954/f-spot,dkoeb/f-spot,NguyenMatthieu/f-spot,NguyenMatthieu/f-spot,dkoeb/f-spot,Yetangitu/f-spot,mono/f-spot,mans0954/f-spot,Yetangitu/f-spot,mans0954/f-spot,NguyenMatthieu/f-spot,mono/f-spot,Yetangitu/f-spot,dkoeb/f-spot,Yetangitu/f-spot,NguyenMatthieu/f-spot,mans0954/f-spot,NguyenMatthieu/f-spot,dkoeb/f-spot,mans0954/f-spot,mono/f-spot,dkoeb/f-spot,mono/f-spot,mono/f-spot,dkoeb/f-spot,mans0954/f-spot,Yetangitu/f-spot