Merge pull request #3991 from RosettaCommons/revert-3984-JackMaguire/CxxExtras
Revert "Add extras=cxx14, cxx17, and cxx20"
Reverts #3984
Looks like it broke the Mac pyrosetta test. Reverting until it's fixed.
notify author
notify list [rosetta-logs@googlegroups.com]