Update ui test suite to nightly-2023-10-15

Author: dtolnay

tests/ui/no-attribute-macro.stderr

@@ -1,29 +1,3 @@
-error[E0706]: functions in traits cannot be declared `async`
- --> tests/ui/no-attribute-macro.rs:2:5
-  |
-2 |     async fn method(&self);
-  |     -----^^^^^^^^^^^^^^^^^^
-  |     |
-  |     `async` because of this
-  |
-  = note: `async` trait functions are not currently supported
-  = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait
-  = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information
-  = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable
-
-error[E0706]: functions in traits cannot be declared `async`
- --> tests/ui/no-attribute-macro.rs:8:5
-  |
-8 |     async fn method(&self) {}
-  |     -----^^^^^^^^^^^^^^^^^
-  |     |
-  |     `async` because of this
-  |
-  = note: `async` trait functions are not currently supported
-  = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait
-  = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information
-  = help: add `#![feature(async_fn_in_trait)]` to the crate attributes to enable
-
 error[E0038]: the trait `Trait` cannot be made into an object
   --> tests/ui/no-attribute-macro.rs:12:12
    |