How to redirect from /ru to without /ru in htaccess?

Question

htaccess

Because of Laravel, I haven’t encountered htaccess for a long time, now I can’t understand where I’m making a mistake.

I need to make a 301 redirect like this:

site.ru/ru -> site.ru/ 
site.ru/ru/path -> site.ru/path

I write htaccess code in mod_rewrite section:

RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^ru/(.*)$ https://%1/$1 [R=301,L]

Links like site.ru/path and site.ru/ru/path - open the same content in Russian, respectively, the robots indexed the links as duplicates. You need to set up a redirect from / ru to without / ru

Answer 1

RewriteRule ^ru(?:/(.*))?$ /$1 [L,R=301]
Append immediately after RewriteEngine On

Answer 2

RewriteRule ^ru(.*)$ /$1? [L,R=301]

Answer 3

RewriteRule ^ru(.*)$ /$1? [L,R=301]