[R-pkg-team] r-cran-devtools is marked for autoremoval from testing

[Debian testing autoremoval watch]

r-cran-devtools 2.2.1-2 is marked for autoremoval from testing on 2020-03-12

It (build-)depends on packages with these RC bugs:
950108: r-cran-dt: unhandled symlink to directory conversion: /usr/lib/R/site-library/DT/htmlwidgets/lib/datatables{,-extensions}