message: Remove dimension on bias quantization specification.
diff: @@ -149,7 +149,7 @@ CONV_2D
  Input 2 (Bias):
  data_type : int32
  range : [int32_min, int32_max]
  - granularity: per-axis (dim = 0)
  + granularity: per-axis
  restriction: (scale, zero_point) = (input0_scale * input1_scale[...], 0)
  Output 0:
  data_type : int8
  @@ -169,7 +169,7 @@ DEPTHWISE_CONV_2D
  Input 2 (Bias):
  data_type : int32
  range : [int32_min, int32_max]
  - granularity: per-axis (dim = 3)
  + granularity: per-axis
  restriction: (scale, zero_point) = (input0_scale * input1_scale[...], 0)
  Output 0:
  data_type : int8
  