can't find esp32 without BLUFI prefix in device name

[rndsw]

I removed the BLUFI_ prefix from the esp32 device name and also changed the default filter into an empty string, espblufi for android can find the esp32, but the ios version cannot.

I am using esp-idf 4.1 and this is the example used in esp32

https://github.com/espressif/esp-idf/tree/23a03a3bdbaab1fe0ba427dcfcc82ef391cc06f4/examples/bluetooth/blufi

I used the function esp_ble_gap_set_device_name(ble_device_name); to change the name of the esp32