connection: Remove wrong VPN route

connection: Remove wrong VPN route

Before this patch the system created following routes for VPN

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.10.9    0.0.0.0         UG    0      0        0 vpn0
192.168.2.0     0.0.0.0         255.255.255.0   U     0      0        0 wlan0
192.168.2.1     0.0.0.0         255.255.255.255 UH    0      0        0 vpn0
192.168.2.1     0.0.0.0         255.255.255.255 UH    0      0        0 wlan0
192.168.10.1    192.168.10.9    255.255.255.255 UGH   0      0        0 vpn0
192.168.10.9    0.0.0.0         255.255.255.255 UH    0      0        0 vpn0

Here the route to gateway in wlan0 192.168.2.1 via vpn0 is not
correct and it will prevent connections to 192.168.2.1

The correct routes should be:

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.10.9    0.0.0.0         UG    0      0        0 vpn0
192.168.2.0     0.0.0.0         255.255.255.0   U     0      0        0 wlan0
192.168.2.1     0.0.0.0         255.255.255.255 UH    0      0        0 wlan0
192.168.10.1    192.168.10.9    255.255.255.255 UGH   0      0        0 vpn0
192.168.10.9    0.0.0.0         255.255.255.255 UH    0      0        0 vpn0

Fixes MBC#25035