Drop a leftover declaration and fix a stale test name

esphome/components/bluetooth_proxy/bluetooth_proxy.h

@@ -204,7 +204,6 @@ class BluetoothProxy final : public Component {
   }
 
  protected:
-  void on_scanner_state_(ble_device_base::ScannerState state);
   bool send_bluetooth_scanner_state_(ble_device_base::ScannerState state);
 #ifndef USE_ESP32
   void send_polled_scanner_state_();

tests/component_tests/ble_device_base/test_slot_counter.py

@@ -103,7 +103,7 @@ def test_esp32_tracker_handler_counts(
     assert get_define_value("ESPHOME_ESP32_BLE_TRACKER_CLIENT_COUNT") is None
 
 
-def test_esp32_bluetooth_proxy_requests_scanner_state_slot(
+def test_esp32_bluetooth_proxy_requests_client_slots_only(
     generate_main: Callable[[str | Path], str],
     component_config_path: Callable[[str], Path],
 ) -> None: