api/compat: drop more compat imports from api_schema.rs

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

src/api2/access.rs

@@ -1,6 +1,5 @@
 use failure::*;
 
-use hyper::StatusCode;
 use serde_json::{json, Value};
 
 use proxmox::{sortable, identity};