How do I erase a particular line in my router?

[rgomez1999]

I have the following 3 lines in my routers that I configured locally and need to erase it. Is there a way I can do it through telnet without having to go to each site and reprogram the router from scratch? If I'm able to do it remotely, which command do I issue the router so it can restart without having to turn it off and turn it back on to make sure the new modified config is correct?

The 3 Lines that needs to be deleted:
==================================
interface ppp 1
ip address 172.16.7.66 255.255.255.0
no shutdown

Thank you

 

[BuckWeet]

conf t
no interface ppp 1
end
wr

BuckWeet

 

[49merc]

Type 'reload' to restart the router