Remove `shape::Update`

It is no longer being used.

crates/fj-kernel/src/shape/mod.rs

@@ -6,12 +6,10 @@ mod api;
 mod local;
 mod object;
 mod stores;
-mod update;
 
 pub use self::{
     api::Shape,
     local::LocalForm,
     object::Object,
     stores::{Handle, Iter},
-    update::Update,
 };

crates/fj-kernel/src/shape/stores.rs

@@ -81,15 +81,6 @@ impl<T: Object> Store<T> {
         }
     }
 
-    pub fn update<F>(&mut self, mut f: F)
-    where
-        F: FnMut(&mut T),
-    {
-        for (_, object) in self.objects.write().iter_mut() {
-            f(object);
-        }
-    }
-
     fn ptr(&self) -> *const () {
         Arc::as_ptr(&self.objects) as _
     }

crates/fj-kernel/src/shape/update.rs

@@ -1,16 +0,0 @@
-use super::{stores::Stores, Object};
-
-/// API to update a `Shape`
-///
-/// See [`Shape::update`].
-pub struct Update<'r> {
-    stores: &'r mut Stores,
-}
-
-impl<'r> Update<'r> {
-    /// Update all objects of a specific type
-    pub fn update_all<T: Object>(self, f: impl FnMut(&mut T)) -> Self {
-        self.stores.get::<T>().update(f);
-        self
-    }
-}