Redirect from www to non-www, subdomain redirect not working?

Question

htaccess

At the moment, redirection does not work if the address contains a subdomain of the msk.url type, it works without a subdomain.
I am using the following code:

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