diff --git a/lib/display.dart b/lib/display.dart
index 12b9a10..9bf37a5 100644
--- a/lib/display.dart
+++ b/lib/display.dart
@@ -4,13 +4,6 @@ Display displayFromJson(Map<String, dynamic> json) => Display(
     name: json['name'],
     rotation: json['rotation']);
 
-/// for release please check response from invokeMethod
-Display displayReleaseFromJson(Map<String, dynamic> json) => Display(
-    displayId: json['a'],
-    flag: json['b'],
-    name: json['d'],
-    rotation: json['c']);
-
 /// The default Display id, which is the id of the built-in primary display
 /// assuming there is one.
 const int DEFAULT_DISPLAY = 0;
diff --git a/lib/displays_manager.dart b/lib/displays_manager.dart
index 113a108..dc5ec50 100644
--- a/lib/displays_manager.dart
+++ b/lib/displays_manager.dart
@@ -65,9 +65,7 @@ class DisplayManager {
     List<Display> displays = [];
     for (var element in origins) {
       final map = jsonDecode(jsonEncode(element));
-      displays.add(kReleaseMode
-          ? displayReleaseFromJson(map as Map<String, dynamic>)
-          : displayFromJson(map as Map<String, dynamic>));
+      displays.add(displayFromJson(map as Map<String, dynamic>));
     }
     return displays;
   }