Fix: Remove duplicate method, keep proper v3 signature handshake

app/src/main/java/com/nexlab/openclaw/node/data/remote/NodeClient.kt

@@ -333,66 +333,6 @@ class NodeClient() {
         })
     }
 
-    // Modified connect request without device auth
-    private fun sendConnectRequestWithChallenge(nodeId: String, token: String, capabilities: NodeCapabilities) {
-        pendingRequestId = "connect-${System.currentTimeMillis()}"
-        
-        // Simplified connect request without device auth - just use the global token
-        val connectParams = JSONObject().apply {
-            put("minProtocol", 3)
-            put("maxProtocol", 3)
-            put("client", JSONObject().apply {
-                put("id", "cli")  // Use "cli" client ID - only one that works with gateway
-                put("displayName", nodeId.ifBlank { "Android Node" })
-                put("version", "1.0.0")
-                put("platform", "android")
-                put("mode", "node")
-            })
-            put("role", "node")
-            put("scopes", JSONArray())
-            put("caps", JSONArray().apply {
-                if (capabilities.screenshot) put("screenshot")
-                if (capabilities.touch) put("touch")
-                if (capabilities.shell) put("shell")
-                if (capabilities.notifications) put("notifications")
-                if (capabilities.appControl) put("appControl")
-                if (capabilities.sensors) put("sensors")
-            })
-            put("commands", JSONArray().apply {
-                put("screenshot")
-                put("touch.*")
-                put("shell")
-                put("notifications")
-                put("app.launch")
-                put("device.info")
-                put("apps.list")
-            })
-            put("permissions", JSONObject())
-            put("auth", JSONObject().apply {
-                put("token", token)
-            })
-            put("device", JSONObject().apply {
-                put("id", "android-node")  // Use fixed device ID
-                put("publicKey", "")  // No public key
-                put("signature", "")  // No signature
-            })
-            put("locale", "en-US")
-            put("userAgent", "openclaw-android/1.0.0")
-        }
-
-        val connectRequest = JSONObject().apply {
-            put("type", "req")
-            put("id", pendingRequestId)
-            put("method", "connect")
-            put("params", connectParams)
-        }
-
-        Log.d(TAG, "Sending connect request without device auth")
-        sendJson(connectRequest)
-        
-        // Don't send pairing request here - wait for connect response first
-    }
-
     private fun sendConnectRequest(nodeId: String, token: String, capabilities: NodeCapabilities) {
         pendingRequestId = "connect-${System.currentTimeMillis()}"