message: Removed kOutput variable which was not used
  tensorflow/lite/kernels/expand_dims.cc:30:15: warning: unused variable 'kOutput' [-Wunused-const-variable]
  constexpr int kOutput = 0;
diff: @@ -27,7 +27,6 @@ namespace builtin {
  namespace expand_dims {
  constexpr int kInput = 0;
  constexpr int kAxis = 1;
  -constexpr int kOutput = 0;
  namespace {
  TfLiteStatus ExpandTensorDim(TfLiteContext* context, const TfLiteTensor& input,
  