Revert "Partial rollback of #10204" (#10258)

* Revert "Test installation status when ideviceid is not installed (#10254)"

This reverts commit 0e5d4a87.

* Revert "Partial rollback of #10204 (#10256)"

This reverts commit b291bf5d.

packages/flutter_tools/lib/src/doctor.dart

@@ -225,7 +225,7 @@ class _FlutterValidator extends DoctorValidator {
     }
 
     return new ValidationResult(valid, messages,
-      statusInfo: 'on ${os.name}, channel ${version.channel}');
+      statusInfo: 'on ${os.name}, locale ${platform.localeName}, channel ${version.channel}');
   }
 }