Remove ecmwf_macc functions

docs/sphinx/source/user_guide/clearsky.rst

@@ -376,7 +376,8 @@ derived from surface relative humidity using functions such as
 :py:func:`pvlib.atmosphere.gueymard94_pw`.
 Numerous gridded products from satellites, weather models, and climate models
 contain one or both of aerosols and precipitable water. Consider data
-from the `ECMWF <https://software.ecmwf.int/wiki/display/WEBAPI/Access+ECMWF+Public+Datasets>`_
+from the `ECMWF ERA5 <https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era5>`_,
+`NASA MERRA-2 <https://gmao.gsfc.nasa.gov/reanalysis/MERRA-2/>`_,
 and `SoDa <http://www.soda-pro.com/web-services/radiation/cams-mcclear>`_.
 
 Aerosol optical depth (AOD) is a function of wavelength, and the Simplified

docs/sphinx/source/whatsnew/v0.9.6.rst

@@ -7,6 +7,10 @@ v0.9.6 (Anticipated June 2023)
 
 Deprecations
 ~~~~~~~~~~~~
+* Removed the ``get_ecmwf_macc`` and ``read_ecmwf_macc`` iotools functions as the
+  MACC dataset is being removed by ECMWF (data period 2003-2012). Instead, ECMWF
+  recommends to use CAMS global reanalysis (EAC4) from the Atmosphere Data Store (ADS).
+  (:issue:`1609`, :pull:`1654`)
 
 
 Enhancements

pvlib/iotools/__init__.py

@@ -5,8 +5,6 @@
 from pvlib.iotools.surfrad import read_surfrad  # noqa: F401
 from pvlib.iotools.midc import read_midc  # noqa: F401
 from pvlib.iotools.midc import read_midc_raw_data_from_nrel  # noqa: F401
-from pvlib.iotools.ecmwf_macc import read_ecmwf_macc  # noqa: F401
-from pvlib.iotools.ecmwf_macc import get_ecmwf_macc  # noqa: F401
 from pvlib.iotools.crn import read_crn  # noqa: F401
 from pvlib.iotools.solrad import read_solrad  # noqa: F401
 from pvlib.iotools.psm3 import get_psm3  # noqa: F401