Dont differentiate between ios_arm and ios_x64 in flutter_tools

All artifacts for iOS are universal.
diff --git a/packages/flutter_tools/lib/src/application_package.dart b/packages/flutter_tools/lib/src/application_package.dart
index d376905..7e9f9c9 100644
--- a/packages/flutter_tools/lib/src/application_package.dart
+++ b/packages/flutter_tools/lib/src/application_package.dart
@@ -110,8 +110,7 @@
     switch (platform) {
       case TargetPlatform.android_arm:
         return android;
-      case TargetPlatform.ios_arm:
-      case TargetPlatform.ios_x64:
+      case TargetPlatform.ios:
         return iOS;
       case TargetPlatform.darwin_x64:
       case TargetPlatform.linux_x64:
@@ -130,8 +129,7 @@
           android = new AndroidApk.fromBuildConfiguration(config);
           break;
 
-        case TargetPlatform.ios_arm:
-        case TargetPlatform.ios_x64:
+        case TargetPlatform.ios:
           iOS ??= new IOSApp.fromBuildConfiguration(config);
           break;
 
diff --git a/packages/flutter_tools/lib/src/artifacts.dart b/packages/flutter_tools/lib/src/artifacts.dart
index db27a19..1794057 100644
--- a/packages/flutter_tools/lib/src/artifacts.dart
+++ b/packages/flutter_tools/lib/src/artifacts.dart
@@ -25,10 +25,8 @@
   switch (platform) {
     case TargetPlatform.android_arm:
       return 'android-arm';
-    case TargetPlatform.ios_arm:
-      return 'ios-arm';
-    case TargetPlatform.ios_x64:
-      return 'ios-x64';
+    case TargetPlatform.ios:
+      return 'ios';
     case TargetPlatform.darwin_x64:
       return 'darwin-x64';
     case TargetPlatform.linux_x64:
diff --git a/packages/flutter_tools/lib/src/build_configuration.dart b/packages/flutter_tools/lib/src/build_configuration.dart
index 25c73a5..170c4bc 100644
--- a/packages/flutter_tools/lib/src/build_configuration.dart
+++ b/packages/flutter_tools/lib/src/build_configuration.dart
@@ -21,8 +21,7 @@
 
 enum TargetPlatform {
   android_arm,
-  ios_arm,
-  ios_x64,
+  ios,
   darwin_x64,
   linux_x64
 }
diff --git a/packages/flutter_tools/lib/src/commands/run.dart b/packages/flutter_tools/lib/src/commands/run.dart
index e752c3f..9aafbee 100644
--- a/packages/flutter_tools/lib/src/commands/run.dart
+++ b/packages/flutter_tools/lib/src/commands/run.dart
@@ -137,8 +137,7 @@
   switch (platform) {
     case TargetPlatform.android_arm:
       return 'Is your project missing an android/AndroidManifest.xml?';
-    case TargetPlatform.ios_arm:
-    case TargetPlatform.ios_x64:
+    case TargetPlatform.ios:
       return 'Is your project missing an ios/Info.plist?';
     default:
       return null;
diff --git a/packages/flutter_tools/lib/src/ios/devices.dart b/packages/flutter_tools/lib/src/ios/devices.dart
index c618a5f..33af902 100644
--- a/packages/flutter_tools/lib/src/ios/devices.dart
+++ b/packages/flutter_tools/lib/src/ios/devices.dart
@@ -229,7 +229,7 @@
   }
 
   @override
-  TargetPlatform get platform => TargetPlatform.ios_arm;
+  TargetPlatform get platform => TargetPlatform.ios;
 
   @override
   DeviceLogReader get logReader {
diff --git a/packages/flutter_tools/lib/src/ios/simulators.dart b/packages/flutter_tools/lib/src/ios/simulators.dart
index 2c776d3..1b89bc4 100644
--- a/packages/flutter_tools/lib/src/ios/simulators.dart
+++ b/packages/flutter_tools/lib/src/ios/simulators.dart
@@ -573,7 +573,7 @@
   }
 
   @override
-  TargetPlatform get platform => TargetPlatform.ios_x64;
+  TargetPlatform get platform => TargetPlatform.ios;
 
   @override
   DeviceLogReader get logReader {
diff --git a/packages/flutter_tools/lib/src/runner/flutter_command_runner.dart b/packages/flutter_tools/lib/src/runner/flutter_command_runner.dart
index 630f01d..4f6d55f 100644
--- a/packages/flutter_tools/lib/src/runner/flutter_command_runner.dart
+++ b/packages/flutter_tools/lib/src/runner/flutter_command_runner.dart
@@ -286,12 +286,7 @@
       if (hostPlatform == HostPlatform.mac) {
         configs.add(new BuildConfiguration.prebuilt(
           hostPlatform: HostPlatform.mac,
-          targetPlatform: TargetPlatform.ios_arm
-        ));
-
-        configs.add(new BuildConfiguration.prebuilt(
-          hostPlatform: HostPlatform.mac,
-          targetPlatform: TargetPlatform.ios_x64
+          targetPlatform: TargetPlatform.ios
         ));
       }
     } else {
@@ -323,7 +318,7 @@
           configs.add(new BuildConfiguration.local(
             type: BuildType.debug,
             hostPlatform: hostPlatform,
-            targetPlatform: TargetPlatform.ios_arm,
+            targetPlatform: TargetPlatform.ios,
             enginePath: enginePath,
             buildPath: globalResults['ios-debug-build-path']
           ));
@@ -331,7 +326,7 @@
           configs.add(new BuildConfiguration.local(
             type: BuildType.debug,
             hostPlatform: hostPlatform,
-            targetPlatform: TargetPlatform.ios_x64,
+            targetPlatform: TargetPlatform.ios,
             enginePath: enginePath,
             buildPath: globalResults['ios-sim-debug-build-path']
           ));
@@ -360,7 +355,7 @@
           configs.add(new BuildConfiguration.local(
             type: BuildType.release,
             hostPlatform: hostPlatform,
-            targetPlatform: TargetPlatform.ios_arm,
+            targetPlatform: TargetPlatform.ios,
             enginePath: enginePath,
             buildPath: globalResults['ios-release-build-path']
           ));
@@ -368,7 +363,7 @@
           configs.add(new BuildConfiguration.local(
             type: BuildType.release,
             hostPlatform: hostPlatform,
-            targetPlatform: TargetPlatform.ios_x64,
+            targetPlatform: TargetPlatform.ios,
             enginePath: enginePath,
             buildPath: globalResults['ios-sim-release-build-path']
           ));