Remove previous vibrancy view when adding a new one
Remove previous vibrancy view when adding a new one

seanwoodward/IBAnimatable,alexiosdev/IBAnimatable,JakeLin/IBAnimatable,IBAnimatable/IBAnimatable,IBAnimatable/IBAnimatable,JakeLin/IBAnimatable,alexiosdev/IBAnimatable,seanwoodward/IBAnimatable,IBAnimatable/IBAnimatable