Revert "feat: wifiscan"

This reverts commit fe3943b48a.

include/NetworkManager.h

@@ -7,18 +7,6 @@ public:
     NetworkManager(NodeContext& ctx);
     void setupWiFi();
     void setHostnameFromMac();
-    void startWiFiScan();
-    void updateWiFiScan();
-    bool isWiFiScanning() const;
-    void processScanResults(int networksFound);
-    void initTasks();  // Initialize tasks after TaskManager is ready  // Public method to process scan results
-    
 private:
     NodeContext& ctx;
-    bool wifiScanInProgress;
-    unsigned long wifiScanStartTime;
-    static const unsigned long WIFI_SCAN_TIMEOUT_MS = 10000; // 10 seconds timeout
-    static const char* const WIFI_SCAN_MONITOR_TASK;  // Task name for WiFi scan monitoring
-    
-    void onWiFiScanComplete(int networksFound);  // Keep private for internal use
 };