Remove CompanionClient NamedTuple
Remove CompanionClient NamedTuple

Summary: Can't find usages of this anywhere

Reviewed By: c-ryan747

Differential Revision: D22066139

fbshipit-source-id: 1ec3530f46d6a194638655c88f332be86adb2db1

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