Generated.xcconfig is only required at build time for iOS apps. In the
flutter create project template and example apps, Generated.xcconfig was
previously marked as a resource to be bundled into the built app.
* Remove stray PRODUCT_BUNDLE_IDENTIFIER
This was erroneously added and overrides
the bundle for the gallery causing signing
to fail in my setup.
@chinmaygarde
* Remove PRODUCT_BUNDLE_IDENTIFIER from all Runner pbxproj's
We now use a different approach for ios projects where the developer controls
the Xcode project file. This patch removes the old ".generated" approach in
favor of the new approach.
