Revert "Hide InputDevice.SOURCE_GESTURE_SENSOR from API"

This reverts commit db512e7e530d2e71cff89aa97eabf0e00b59bfb0.
Revert "Support GESTURE_SENSOR input device type with GestureService"

This reverts commit 8975e2b9dc58b57ecc39b4a6f4853d79d4d06d57.