[arch-general] /usr/bin/ksh support should be dropped

Hi, I get the following warning when starting up ksh: WARNING: you should be calling ksh with /bin/ksh, not with /usr/bin/ksh. Please execute chsh to fix this. Legacy /usr/bin/ksh support will go away! $ Considering csh and tcsh were also moved to /bin/, it would be a good idea to remove the /usr/bin/ksh binary (it exists in /bin/, too). Note: I'm using zsh as my primary shell, but I installed other shells so users can use them if they wish. nyuszika7h