Remove redundant duplicate API call in brancher:list command

The brancherApp->list() was called twice with the first result discarded,
causing double API requests and potential jq parse errors when the first
call failed and wrote an exception stack trace to stdout.

Author: peterjaap

app/Commands/ListBrancherNodes.php

@@ -37,8 +37,6 @@ public function handle()
 
         $originHypernode = $this->argument('hypernode');
 
-        $client->brancherApp->list($originHypernode);
-
         $branchers = $client->brancherApp->list($originHypernode);
 
         if ($this->option('output') === 'json') {