fix changelog

doc/changelog.rst

@@ -10,11 +10,6 @@ This is an update to the beta release of ``qutip-qoc``.
 
 It mainly introduces the new reinforcement learning algorithm ``qutip_qoc._rl``.
 
-- Non-public facing functions have been renamed to start with an underscore.
-- As with other QuTiP functions, ``optimize_pulses`` now takes a ``tlist`` argument instead of ``_TimeInterval``.
-- The structure for the control guess and bounds has changed and now takes in an optional ``__time__`` keyword.
-- The ``result`` does no longer return ``optimized_objectives`` but instead ``optimized_H``.
-
 Features
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