Remove Duplicate Compiler Warnings from pbxproj
Remove Duplicate Compiler Warnings from pbxproj

Summary: These are all inherited from the `xcconfig`, so there's no need for these to be re-declared in the project itself.

Reviewed By: marekcirkos

Differential Revision: D3365235

fbshipit-source-id: 51bda23ab1427f92cc9b7be4715bbbeb667a92d2

StevenUpForever/FBSimulatorControl,StevenUpForever/FBSimulatorControl,plu/FBSimulatorControl,StevenUpForever/FBSimulatorControl,bootstraponline/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,bootstraponline/FBSimulatorControl,facebook/FBSimulatorControl,StevenUpForever/FBSimulatorControl,ichu501/FBSimulatorControl,facebook/FBSimulatorControl,plu/FBSimulatorControl,bootstraponline/FBSimulatorControl,plu/FBSimulatorControl,facebook/FBSimulatorControl,bootstraponline/FBSimulatorControl,plu/FBSimulatorControl