remove config check

* Database load function is the wrong place for this
* There's no good lower bound to check for this
* Surely people setting this to a small value would realize what they're
  in for

src/database.rs

@@ -357,13 +357,6 @@ impl KeyValueDatabase {
             return Err(Error::bad_config("Registration token is empty"));
         }
 
-        if config.max_request_size < 1024 {
-            error!(
-                ?config.max_request_size,
-                "Max request size is less than 1KB. Please increase it.",
-            );
-        }
-
         let db_raw = Box::new(Self {
             db: builder.clone(),
             userid_password: builder.open_tree("userid_password")?,