remove unrelated code (#36481)

packages/flutter_tools/lib/src/artifacts.dart

@@ -70,10 +70,6 @@ String _artifactToFileName(Artifact artifact, [ TargetPlatform platform, BuildMo
     case Artifact.flutterFramework:
       return 'Flutter.framework';
     case Artifact.flutterMacOSFramework:
-      if (platform != TargetPlatform.darwin_x64)  {
-        throw Exception('${getNameForTargetPlatform(platform)} does not support'
-            ' macOS desktop development');
-      }
       return 'FlutterMacOS.framework';
     case Artifact.vmSnapshotData:
       return 'vm_isolate_snapshot.bin';
@@ -118,16 +114,8 @@ String _artifactToFileName(Artifact artifact, [ TargetPlatform platform, BuildMo
     case Artifact.iproxy:
       return 'iproxy';
     case Artifact.linuxDesktopPath:
-      if (platform != TargetPlatform.linux_x64)  {
-        throw Exception('${getNameForTargetPlatform(platform)} does not support'
-            ' Linux desktop development');
-      }
       return '';
     case Artifact.windowsDesktopPath:
-      if (platform != TargetPlatform.windows_x64)  {
-        throw Exception('${getNameForTargetPlatform(platform)} does not support'
-            ' Windows desktop development');
-      }
       return '';
     case Artifact.skyEnginePath:
       return 'sky_engine';