Bluetooth: Host: Remove deprecated device name API

Removes the BT_LE_ADV_OPT_USE_NAME and BT_LE_ADV_OPT_FORCE_NAME_IN_AD
advertiser options and related flags, macros and functions. The
application now needs to include the device name explicitly.

The API was deprecated in
https://github.com/zephyrproject-rtos/zephyr/pull/71700



Signed-off-by: Håvard Reierstad <haavard.reierstad@nordicsemi.no>