input: Fix surpressed_keys logic

src/input/mod.rs

@@ -102,16 +102,17 @@ impl SupressedKeys {
             .partition(|(key, _)| *key == keysym.raw_code());
         *keys = remaining;
 
-        let removed = removed
+        if removed.is_empty() {
+            return None;
+        }
+
+        Some(
+            removed
                 .into_iter()
                 .map(|(_, token)| token)
                 .flatten()
-            .collect::<Vec<_>>();
+                .collect::<Vec<_>>(),
-        if removed.is_empty() {
+        )
-            None
-        } else {
-            Some(removed)
-        }
     }
 }