Remove BuildConfigurations (#3879)

Artifacts from local engine builds will be found based on the --local-engine flag

packages/flutter_tools/lib/src/ios/devices.dart

diff --git a/packages/flutter_tools/lib/src/ios/devices.dart b/packages/flutter_tools/lib/src/ios/devices.dart
index d64fe0e..3fa0609 100644
--- a/packages/flutter_tools/lib/src/ios/devices.dart
+++ b/packages/flutter_tools/lib/src/ios/devices.dart
@@ -11,7 +11,7 @@
 import '../application_package.dart';
 import '../base/os.dart';
 import '../base/process.dart';
-import '../build_configuration.dart';
+import '../build_info.dart';
 import '../device.dart';
 import '../globals.dart';
 import 'mac.dart';