diff --git a/tensorflow/lite/kernels/concatenation.cc b/tensorflow/lite/kernels/concatenation.cc
index d447ba7a289..017760db23d 100644
--- a/tensorflow/lite/kernels/concatenation.cc
+++ b/tensorflow/lite/kernels/concatenation.cc
@@ -52,8 +52,6 @@ TfLiteStatus Prepare(TfLiteContext* context, TfLiteNode* node) {
   TF_LITE_ENSURE(context, axis >= 0);
   TF_LITE_ENSURE(context, axis < t0->dims->size);
 
-  // TODO(ahentz): These are limitations of our implementation that could be
-  // removed with a bit of effort.
   TF_LITE_ENSURE_EQ(context, params->activation, kTfLiteActNone);
   TF_LITE_ENSURE(context,
                  input_type == kTfLiteFloat32 || input_type == kTfLiteUInt8 ||