drop unneccessary imports
@@ -30,9 +30,6 @@ import com.yahoo.searchlib.aggregation.Grouping;
import com.yahoo.slime.BinaryFormat;
import com.yahoo.vespa.objects.BufferSerializer;
-import com.yahoo.tensor.serialization.TypedBinaryFormat;
-import com.yahoo.tensor.Tensor;
-
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
