Remove these exact lines from your config and you should be good:
# enforce https
return 301 https://$server_name$request_uri;
}
server {
listen 443 ssl http2;
listen [::]:443 ssl http2;
server_name cloud.example.com;
# Use Mozilla's guidelines for SSL/TLS settings
# https://mozilla.github.io/server-side-tls/ssl-config-generator/
# NOTE: some settings below might be redundant
ssl_certificate /etc/ssl/nginx/cloud.example.com.crt;
ssl_certificate_key /etc/ssl/nginx/cloud.example.com.key;
# Add headers to serve security related headers
# Before enabling Strict-Transport-Security headers please read into this
# topic first.
# add_header Strict-Transport-Security "max-age=15768000; includeSubDomains; preload;";
#
# WARNING: Only add the preload option once you read about
# the consequences in https://hstspreload.org/. This option
# will add the domain to a hardcoded list that is shipped
# in all major browsers and getting removed from this list
# could take several months.
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
add_header X-Robots-Tag none;
add_header X-Download-Options noopen;
add_header X-Permitted-Cross-Domain-Policies none;
add_header Referrer-Policy no-referrer;
That should give you a long block for the http part
server {
listen 80;
listen [::]:80;
server_name cloud.example.com;
...