Is this in the OpenFL source code? There doesn’t seem to be a folder iphone inside templates:
Also I couldn’t find the file anywhere in OpenFL or in the Exports folder (using find ./ -iname "PROJ.xcodeproj" and find ./ -iname "*xcodeproj").
About the “enable” setting, I guess it depends on why this is happening, I assumed that this is some change that Apple made to the way Xcode 7.x works, and that it will affect everyone who upgrades their xcode, in which case it would be good to have a simple way to address it. But I can’t be sure that this is not something specific of my local system.