Fix memory leak in HildonAnimationActor
Fix memory leak in HildonAnimationActor

Fixes: MB#8731 (Memory leaks in widget HildonAnimationActor)

community-ssu/hildon,archlinuxarm-n900/libhildon,community-ssu/hildon,archlinuxarm-n900/libhildon,archlinuxarm-n900/libhildon,community-ssu/hildon