The config the OP is talking about is a static route.
It looks to me like the proper command is being issued to delete it.
It seems that the route is being removed from the routing table as it no longer appears when sho ip route is run, but it still appears in the sho run output. I reckon it's just an abberration. Clear it out with no ip route, then copy run start, then power cycle the router, assuming you haven't tried this already. If you have, do a traceroute to see if packets are actually using the static route after it has gone from the routing table. If the route is still in use after a no ip route, try clear ip route * and force the routing table to be rebuilt. If none of that works, I have no idea!
And please tell me this is a real router, and not Packet Tracer or GNS3 or Boson Netsim :roll:
Ip route means?
IP route, when issued at global config, configures a static route. You must include a destination IP and subnet mask and a next hop IP address. No "processes" are required. The config looks like this:
Router(config)#ip route 192.168.10.0 255.255.255.0 172.16.10.10
It translates as:
"To send a packet to the 192.168.10.0 network, route all packets addressed to that destination via the interface with the ip address 172.16.10.10.
To ensure two way routing (in other words to enable replys to be received from the 192.168.10.0 network), the destination network must either be configured with a corresponding static route, or it must have a routing protocol running that learnt the return path. Usually a return static route is the preferred option.