Removing OpenVPN and all modifications

When starting up my server takes a long time. I already tried sudo apt-get remove openvpn but somewhere it's still trying to setup OpenVPN. When I connect to the server I get all these internal VPN addresses:

System load:          0.02                IP address for as0t3:  5.5.3.1
Usage of /:           13.5% of 212.98GB   IP address for as0t4:  5.5.4.1
Memory usage:         4%                  IP address for as0t5:  5.5.5.1
Swap usage:           0%                  IP address for as0t6:  5.5.6.1
Processes:            164                 IP address for as0t7:  5.5.7.1
Users logged in:      0                   IP address for as0t8:  5.5.8.1
IP address for eth0: my_ip_here           IP address for as0t9:  5.5.9.1
IP address for as0t0: 5.5.0.1             IP address for as0t10: 5.5.10.1
IP address for as0t1: 5.5.1.1             IP address for as0t11: 5.5.11.1
IP address for as0t2: 5.5.2.1

When I check /etc/networking/interfaces it is empty.

root@ubuntu:~# ls -l /etc/openvpn
total 12
drwxr-xr-x 2 root root 4096 Mar 11 22:27 easy-rsa
-rw-r--r-- 1 root root  636 Dec  6 18:35 static.key
-rwxr-xr-x 1 root root 1357 Feb 26  2013 update-resolv-conf
root@ubuntu:~# dpkg -l | grep vpn
rc  openvpn                             2.2.1-8ubuntu1.2                            virtual private network daemon
ii  openvpn-as                          1.8.4-Ubuntu10                              openvpn-as

sudo systemctl disable openvpn --now # on modern distros with systemd

Will remove OpenVPN service from startup and stop it

But if you cannot find the init script that is starting the openvpn process you can simply remove or rename these .conf files under /etc/openvpn/ since they generate the VPN interface and routes.