Revert "Move source_update after transform propagation."

This didn't fix the bug I hoped it would, and introduced new regressions.

This reverts commit 097fb6100d.

src/lib.rs

@@ -13,7 +13,6 @@ use bevy::{
     asset::{AssetLoader, HandleId, LoadContext, LoadedAsset},
     prelude::*,
     reflect::TypeUuid,
-    transform::TransformSystem,
     utils::BoxedFuture,
 };
 use lewton::inside_ogg::OggStreamReader;
@@ -444,12 +443,7 @@ impl Plugin for OpenAlPlugin {
             .insert_resource(GlobalEffects::default())
             .register_type::<Listener>()
             .add_system(buffer_creation.system())
-            .add_system_to_stage(
-                CoreStage::PostUpdate,
-                source_update
-                    .system()
-                    .after(TransformSystem::TransformPropagate),
-            )
+            .add_system(source_update.system())
             .add_system(listener_update.system());
     }
 }