actually sane sensor handling

src/util/id.rs

@@ -13,10 +13,6 @@ pub struct IDTracker {
 }
 
 impl IDTracker {
-    pub fn new() -> Self {
-        Self::default()
-    }
-
     #[allow(clippy::should_implement_trait)]
     pub fn next(&mut self) -> Id {
         if let Some(id) = self.free.pop() {