Locale settings for RHEL 7/8

In RHEL7/8 I know we control the locale setting using localctl command and which updates the /**etc/locale.conf** file. Ex : > # localectl set-locale LANG=ja_JP.utf8 > # localectl set-keymap jp106 > # localectl System Locale: LANG=ja_JP.utf8 > VC Keymap: jp106 > X11 Layout: jp But in RHEL6 we have another file for this purpose **/etc/sysconfig/i18n** LANG=en_US.UTF-8 SUPPORTED="en_US.UTF8:en_US:en:ja_JP.eucXXXXX" SYSFONT="lat0-sun16" SYSFONTACM="8859-15" My question is do we need these variables also in RHEL7/8. - SUPPORTED - SYSFONT - SYSFONTACM My guess is we dont need to explicitly declare these variables anymore in RHEL7/8 ?