remove TODOs I added

can revisit later

Author: maniwani

crates/bevy_ecs/src/system/function_system.rs

@@ -226,7 +226,6 @@ impl<Param: SystemParam> SystemState<Param> {
         &'s mut self,
         world: &'w World,
     ) -> <Param::Fetch as SystemParamFetch<'w, 's>>::Item {
-        // TODO: Only increment if fetch is not read-only, otherwise just read the value.
         let change_tick = world.increment_change_tick();
         let param = <Param::Fetch as SystemParamFetch>::get_param(
             &mut self.param_state,
@@ -467,7 +466,6 @@ where
 
     #[inline]
     unsafe fn run_unsafe(&mut self, input: Self::In, world: &World) -> Self::Out {
-        // TODO: Only increment if fetch is not read-only, otherwise just read the value.
         let change_tick = world.increment_change_tick();
         let out = self.func.run(
             input,