Remove a nonsense impl of DetectChangesMut::detect_changes (#34)

See: bevyengine/bevy#7660.

Cargo.toml

@@ -16,7 +16,7 @@ bevy-trait-query-impl = { path = "proc-macro", version = "0.1.0" }
 
 [dependencies.bevy]
 git = "https://github.com/bevyengine/bevy"
-rev = "f7fbfaf9c72035e98c6b6cec0c7d26ff9f5b1c82"
+rev = "81307290e25edcb986bad7826ed6b832eb57bd8b"
 default-features = false
 
 [dev-dependencies]

src/change_detection.rs

@@ -53,14 +53,6 @@ impl<T: ?Sized> DetectChangesMut for Mut<'_, T> {
     fn bypass_change_detection(&mut self) -> &mut Self::Inner {
         self.value
     }
-
-    fn set_if_neq<Target>(&mut self, _: Target)
-    where
-        Self: Deref<Target = Target> + DerefMut<Target = Target>,
-        Target: PartialEq,
-    {
-        unreachable!()
-    }
 }
 
 impl<'a, T: ?Sized> Mut<'a, T> {