Delete NAT Rule

List the configured rules with numbers:

iptables -t nat -L --line-numbers

Output

user@myserver $ sudo iptables -t nat -L --line-numbers
Chain PREROUTING (policy ACCEPT)
num  target     prot opt source               destination
1    DNAT       tcp  --  anywhere             static.64.222.201.195.clients.your-server.de  tcp dpt:http-alt /* forward to the Nginx container */ to:10.10.249.94:80
2    DNAT       tcp  --  anywhere             static.64.222.201.195.clients.your-server.de  tcp dpt:https /* forward to the Nginx container */ to:10.10.249.243:443
3    DNAT       tcp  --  anywhere             static.64.222.201.195.clients.your-server.de  tcp dpt:http /* forward to the Nginx container */ to:10.10.249.243:80

The number of the rule can now be used to delete it:

iptables -t nat -D PREROUTING <number>