postfix: move to pkgs/by-name

-2
pkgs/servers/mail/postfix/default.nix pkgs/by-name/po/postfix/package.nix
pkgs/servers/mail/postfix/post-install-script.patch pkgs/by-name/po/postfix/post-install-script.patch
pkgs/servers/mail/postfix/postfix-script-shell.patch pkgs/by-name/po/postfix/postfix-script-shell.patch
pkgs/servers/mail/postfix/relative-symlinks.patch pkgs/by-name/po/postfix/relative-symlinks.patch
pkgs/servers/mail/postfix/update.sh pkgs/by-name/po/postfix/update.sh
-2
pkgs/top-level/all-packages.nix
··· 11448 11448 tbb = tbb_2021_11; 11449 11449 }; 11450 11450 11451 - postfix = callPackage ../servers/mail/postfix { }; 11452 - 11453 11451 pfixtools = callPackage ../servers/mail/postfix/pfixtools.nix { }; 11454 11452 11455 11453 pflogsumm = callPackage ../servers/mail/postfix/pflogsumm.nix { };