It's time to remove the Taptic Engine, which is attached at the hip to the speaker.

The Taptic Engine is Apple's take on the linear actuator. It creates motion in a straight line (as opposed to the circular motion of an electric motor), which in turn provides haptic feedback.

It makes sense that the Taptic Engine is attached to the speaker. When combined with subtle audio cues from the specially engineered speaker driver, the Taptic Engine is designed to output a unique motion.