namespace may be set via $memcached_key

src/http/modules/ngx_http_memcached_module.c

diff --git a/src/http/modules/ngx_http_memcached_module.c b/src/http/modules/ngx_http_memcached_module.c
index 0fee694..ffd872b 100644
--- a/src/http/modules/ngx_http_memcached_module.c
+++ b/src/http/modules/ngx_http_memcached_module.c
@@ -595,7 +595,6 @@
 
     u.url = value[1];
     u.no_resolve = 1;
-    /* u.uri_part = 1;  may be used as namespace */
 
     lcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0);
     if (lcf->upstream.upstream == NULL) {