SIGINT to video recording
SIGINT to video recording

Summary: A `TERM` is not what `simctl` expects. As such we should just use an interrupt. We also need to make sure that we tear down the future by nilling it out.

Reviewed By: c-ryan747

Differential Revision: D14683882

fbshipit-source-id: d85f5cb8a8d40fbb2b10c1440479f2222db35031

facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl