Disable HTTPS redirect in NGINX

Hi,

I have been trying to disable HTTPS redirect in NGINX but just couldn’t. My current NGINX configuration is:

server {
    listen 80 default_server;
    listen [::]:80 default_server ipv6only=on;

    root /usr/share/nginx/html;
    index index.html index.html;

    server_name blog.gollahalli.me;

    location / {
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header HOST $http_host;
        proxy_set_header X-NginX-Proxy true;

        proxy_pass http://127.0.0.1:2368;
        proxy_redirect off;
    }
}

server {
    listen 443 ssl;
    server_name blog.gollahalli.me; # Replace with your domain

    root /usr/share/nginx/html;
    index index.html index.htm;

    ssl on;
    ssl_certificate /root/blog.gollahalli.me.chained.crt;
    ssl_certificate_key /root/blog.gollahalli.me.key;

    client_max_body_size 10G;

        location / {
        proxy_pass http://localhost:2368;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_buffering off;
    }
}

I have tried removing the listen 443, but I get page not found. What am I doing wrong here? I don’t see any redirect URL here.