First, check the list of units including the service name you want to remove:
systemctl list-units --type=service
Remove a service systemd in Linux
systemctl stop [servicename]
systemctl disable [servicename]
sudo rm /etc/systemd/system/[servicename].service
systemctl daemon-reload
systemctl reset-failed
Replace [servicename] with your service name want to remove
You can check with the command below:
systemctl list-units --type=service
The output returns a list of name services excluding your service name
https://superuser.com/questions/513159/how-to-remove-systemd-services