:sig
bool memcache_delete(u64 connection, String key)

:params
connection : connection handle
key : key string
return value : true if the operation was successful

:see
>memcache

:content
Deletes the entry identified by `key`.

The return value is `true` when the operation succeeds.

:example
u64 conn = memcache_connect();
if(conn != 0)
{
    memcache_set(conn, "doc_del_key", "v");
    memcache_delete(conn, "doc_del_key");
    print(memcache_get(conn, "doc_del_key", "gone"), "\n");
}
else print("(requires a reachable memcached server)\n");
