message: Move the release notes for keras API since we did not cherry-pick the change
diff: @@ -72,12 +72,6 @@ stjohnso98, <NAME>, <HERE>, <USING>, <GITHUB>, <HANDLE>
  models will not be impacted.
  ## Bug Fixes and Other Changes
  -
  -* `tf.keras`:
  - * Deprecated the `tf.keras.experimental.PeepholeLSTMCell` layer, which was
  - moved to `tensorflow_addons` as
  - `tensorflow_addons.rnn.PeepholeLSTMCell`. This experimental API is
  - expected to be removed from TF in the next public release (2.4).
  * Mutable tables now restore checkpointed values when loaded from SavedModel.
  # Release 2.1.1
  