fixes blescan.cpp & update readme.md

src/blecsan.cpp

@@ -14,18 +14,16 @@ https://github.com/nkolban/esp32-snippets/tree/master/BLE/scanner
 #include <esp_blufi_api.h>
 #include <bt_types.h>
 
+#define BT_BD_ADDR_HEX(addr)   addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]
+
 // defined in macsniff.cpp
 bool mac_add(uint8_t *paddr, int8_t rssi, bool sniff_type);
 
-#define BT_BD_ADDR_STR         "%02x:%02x:%02x:%02x:%02x:%02x"
-#define BT_BD_ADDR_HEX(addr)   addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]
-
 // Prototypes
 static const char *bt_event_type_to_string(uint32_t eventType);
 static const char *bt_gap_search_event_type_to_string(uint32_t searchEvt);
 static const char *bt_addr_t_to_string(esp_ble_addr_type_t type);
 static const char *bt_dev_type_to_string(esp_bt_dev_type_t type);
-static const char *btsig_gap_type(uint32_t gap_type);
 static void gap_callback_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param);
 
 // local Tag for logging