zsh/_networkctl: remove duplicated argument for completion (#31926)

It is unnecessary, which will mess the completion.

(cherry picked from commit 733518b)
(cherry picked from commit fd2a6ea)
(cherry picked from commit 00df4de)

Author: HIDE-r

shell-completion/zsh/_networkctl

@@ -29,7 +29,7 @@
                 (list|status|up|down|cat|edit|lldp|delete|renew|forcerenew|reconfigure)
                     for link in ${(f)"$(_call_program links networkctl list --no-legend)"}; do _links+=($link[(w)2]:$link); done
                     if [[ -n "$_links" ]]; then
-                        _describe -t links 'links' _links _links $( [[ $cmd == (edit|cat) ]] && print -- -P@ )
+                        _describe -t links 'links' _links $( [[ $cmd == (edit|cat) ]] && print -- -P@ )
                     else
                         _message "no links"
                     fi