remove bootloader_util from beacon-unicode already included by simple ble
remove bootloader_util from beacon-unicode
already included by simple ble

lab11/nrf5x-base,lab11/nrf5x-base,Tech4Race/nrf5x-base,lab11/nrf5x-base,lab11/nrf5x-base,Tech4Race/nrf5x-base,Tech4Race/nrf5x-base,Tech4Race/nrf5x-base