How to redirect https www to https non-www in Nginx server

This is my config file for the site. I have tried previous tutorials and answers but they don’t work for me

server {
        root /var/www/html;
        index index.html index.htm index.nginx-debian.html;

        server_name xtremeremoval.com www.xtremeremoval.com;

        location / {
                proxy_pass http://localhost:3000;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection 'upgrade';
                proxy_set_header Host $host;
                proxy_cache_bypass $http_upgrade;
        }

    listen [::]:443 ssl ipv6only=on; # managed by Certbot
    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/xtremeremoval.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/xtremeremoval.com/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot


}
server{

    if ($host = xtremeremoval.com) {
        return 301 https://xtremeremoval.com$request_uri;
    } # managed by Certbot
    if ($host = www.xtremeremoval.com){
        return 301 https://xtremeremoval.com$request_uri;
     }
        listen 80;
        listen [::]:80;

        server_name xtremeremoval.com www.xtremeremoval.com;

    return 404; # managed by Certbot
}