Log Message:
(math/R-gdata) Updated 2.19.0 to 3.0.0

Changes in 3.0.0 (2023-10-09)
-----------------------------

Other changes:

- Removed installXLSXsupport(), read.xls(), sheetCount(), sheetNames(),
  xls2csv(), xls2tab(), xls2tsv(), xls2sep(), and xlsFormats(). See gdata 2.19.0
  NEWS entry announcing their deprecation.

- Added aliases n_obs(), object_size(), and starts_with(). Deprecated
  gdata::object.size().