rm res var name

the res variable isn't used

Author: wchen-r7

modules/exploits/multi/http/vbulletin_unserialize.rb

@@ -94,7 +94,7 @@ def exploit
     chain = Rex::Text.uri_encode(chain)
     chain = chain.gsub(/%2a/, '%00%2a%00')  # php and Rex disagree on '*' encoding
 
-    res = send_request_cgi({
+    send_request_cgi({
         'method' => 'GET',
         'uri'       => normalize_uri(target_uri.path, 'ajax/api/hook/decodeArguments'),
         'vars_get' => {