Update ObjectDetection.cs

Author: LittleLittleCloud

src/Microsoft.ML.AutoML/SweepableEstimator/Estimators/ObjectDetection.cs

@@ -26,7 +26,6 @@ public override IEstimator<ITransformer> BuildFromOption(MLContext context, Obje
                 WeightDecay = param.WeightDecay,
                 PredictedBoundingBoxColumnName = param.PredictedBoundingBoxColumnName,
                 ScoreThreshold = param.ScoreThreshold,
-                Steps = param.Steps,
                 IOUThreshold = param.IOUThreshold,
             };