[flutter_tools] Restore base/platform.dart (#56410)
diff --git a/packages/flutter_tools/lib/src/ios/xcodeproj.dart b/packages/flutter_tools/lib/src/ios/xcodeproj.dart
index 6466202..1786508 100644
--- a/packages/flutter_tools/lib/src/ios/xcodeproj.dart
+++ b/packages/flutter_tools/lib/src/ios/xcodeproj.dart
@@ -5,7 +5,6 @@
import 'dart:async';
import 'package:meta/meta.dart';
-import 'package:platform/platform.dart';
import 'package:process/process.dart';
import '../artifacts.dart';
@@ -13,6 +12,7 @@
import '../base/file_system.dart';
import '../base/io.dart';
import '../base/logger.dart';
+import '../base/platform.dart';
import '../base/process.dart';
import '../base/terminal.dart';
import '../base/utils.dart';