Limit req: Remove unused struct element

[Maxim Dounin]

Hello!

On Fri, Oct 07, 2016 at 05:51:49PM -0700, Robert Paprocki wrote:

> # HG changeset patch
> # User Robert Paprocki <robert at cryptobells.com>
> # Date 1475887216 25200
> #      Fri Oct 07 17:40:16 2016 -0700
> # Node ID eb5109e432b6138d2a128fd3766be2dbb11974af
> # Parent  1606a817c1d48ed351f1dd7d9cb9c996e2c77b9a
> Limit req: Remove unused struct element
> 
> dummy doesn't appear to be necessary for padding alignment,
> and is unused in this module.
> 
> diff -r 1606a817c1d4 -r eb5109e432b6
> src/http/modules/ngx_http_limit_req_module.c
> --- a/src/http/modules/ngx_http_limit_req_module.c Fri Oct 07 16:59:14 2016
> +0300
> +++ b/src/http/modules/ngx_http_limit_req_module.c Fri Oct 07 17:40:16 2016
> -0700
> @@ -12,7 +12,6 @@
> 
>  typedef struct {
>      u_char                       color;
> -    u_char                       dummy;
>      u_short                      len;
>      ngx_queue_t                  queue;
>      ngx_msec_t                   last;

While it is not stricly necessary, it corresponds to the "data" 
field in the ngx_rbtree_node_t and it is better to have it 
explicitly present to simplify understanding of the code.

-- 
Maxim Dounin
http://nginx.org/