chore: Clean up use_on_destroy docs (#2199)

* chore: Clean up `use_on_destroy` docs

* fmt

packages/hooks/src/use_on_destroy.rs

@@ -1,10 +1,6 @@
 use dioxus_core::prelude::use_drop;
 
-#[deprecated(
-    note = "Use `use_on_destroy` instead, which has the same functionality. \
-This is deprecated because of the introduction of `use_on_create` which is better mirrored by `use_on_destroy`. \
-The reason why `use_on_create` is not `use_on_mount` is because of potential confusion with `dioxus::events::onmounted`."
-)]
+#[deprecated(note = "Use `use_drop` instead, which has the same functionality.")]
 pub fn use_on_unmount<D: FnOnce() + 'static>(destroy: D) {
     use_drop(destroy);
 }