Clean unused code block
Clean unused code block

Since variable `network_id` is never used
Refer to issue #547

meng-sun/hil,henn/hil,henn/hil_sahil,henn/hil,SahilTikale/haas,kylehogan/haas,henn/hil_sahil,henn/haas,CCI-MOC/haas,kylehogan/hil,kylehogan/hil,meng-sun/hil