I use unity 5.4.1f version and LeapMoitino_CoreAsset_Orion_4.1.4.I want gesture but, no where enableGesture() and Gesturesleap gesture class removed?
Yes, gestures were removed in favor of more physical interactions like pinch/grab. See here for best practices and resources: http://blog.leapmotion.com/unity-core-assets-101-start-building-vr-project/