Remove the i32 size specifier (not needed)

Author: HD Moore

lib/msf/core/payload/windows/reverse_winhttp.rb

@@ -187,7 +187,7 @@ def asm_reverse_winhttp(opts={})
 
       WinHttpOpenRequest:
 
-        push.i32 #{"0x%.8x" % http_open_flags}
+        push #{"0x%.8x" % http_open_flags}
         push ebx               ; AcceptTypes (NULL)
         push ebx               ; Referrer (NULL)
         push ebx               ; Version (NULL)