remove duplicated entries

Author: kandersolar

docs/sphinx/source/whatsnew/v0.12.0.rst

@@ -6,12 +6,6 @@ v0.12.0 (March 19, 2025)
 
 Breaking Changes
 ~~~~~~~~~~~~~~~~
-* The :py:attr:`pvlib.location.Location.pytz` attribute is now read only. The
-  ``pytz`` attribute is now set internally to be consistent with the
-  :py:attr:`pvlib.location.Location.tz` attribute. (:issue:`2340`, :pull:`2341`)
-* Users must now provide :py:attr:`ModelChain.spectral_model`, or the 'no_loss' spectral
-  model is assumed. :py:class:`~pvlib.modelchain.ModelChain` no longer attempts to infer
-  the spectral model from :py:class:`~pvlib.pvsystem.PVSystem` attributes. (:issue:`2017`, :pull:`2253`)
 * The :py:attr:`pvlib.location.Location.pytz` attribute is now read only. The
   ``pytz`` attribute is now set internally to be consistent with the
   :py:attr:`pvlib.location.Location.tz` attribute. (:issue:`2340`, :pull:`2341`)