Remove C++ standard checks
Remove checks for C++11 etc, in various bits of the ATLAS code. We only ever build with C++17 (and hopefully C++20 soon).
Some of this is in core packages, so requesting full build full unit tests.
Remove checks for C++11 etc, in various bits of the ATLAS code. We only ever build with C++17 (and hopefully C++20 soon).
Some of this is in core packages, so requesting full build full unit tests.