message: Add bug for TODO in concatenation.
  First TODO is removed due to duplicated code in optimized is already removed before.
diff: @@ -68,8 +68,7 @@ inline void Concatenation(const ConcatenationParams& params,
  }
  }
  -// TODO(prabhumk): This is the same as the optimized implementation.
  -// TODO(prabhumk): The quantized implementation of concatentation isn't fully
  +// TODO(b/174275780): The quantized implementation of concatentation isn't fully
  // quantized as it takes scale as a floating point value. This should be fixed
  // when optimizng this routine further.
  inline void ConcatenationWithScaling(const ConcatenationParams& params,
  