remove extra settings

example/config.json

@@ -13,8 +13,7 @@
       {
           "host":"127.0.0.1",
           "port":11211,
-          "timeout":3600,
-          "namespace":""
+          "timeout":3600
       }
   },
   "dokuwiki":

src/server.php

@@ -64,7 +64,8 @@ $config = json_decode(
 $memory = new \Yggverse\Cache\Memory(
     $config->memcached->server->host,
     $config->memcached->server->port,
-    $config->memcached->server->namespace,
+    $config->memcached->server->host.
+    $config->memcached->server->port,
     $config->memcached->server->timeout
 );