eframe: App::on_exit is no longer available for wasm32

It was never called in wasm32, so no need to have it there

crates/eframe/src/epi.rs

@@ -125,12 +125,14 @@ pub trait App {
     ///
     /// To get a [`glow`] context you need to compile with the `glow` feature flag,
     /// and run eframe with the glow backend.
+    #[cfg(not(target_arch = "wasm32"))]
     #[cfg(feature = "glow")]
     fn on_exit(&mut self, _gl: Option<&glow::Context>) {}
 
     /// Called once on shutdown, after [`Self::save`].
     ///
     /// If you need to abort an exit use [`Self::on_close_event`].
+    #[cfg(not(target_arch = "wasm32"))]
     #[cfg(not(feature = "glow"))]
     fn on_exit(&mut self) {}
 

crates/eframe/src/web/backend.rs

@@ -1,8 +1,7 @@
 use egui::{
     mutex::{Mutex, MutexGuard},
-    TexturesDelta,
+    pos2, Color32, TexturesDelta,
 };
-pub use egui::{pos2, Color32};
 
 use crate::{epi, App};