bluetooth: host: keys: Remove CONFIG_BT_MAX_CONN from key in use check
bluetooth: host: keys: Remove CONFIG_BT_MAX_CONN from key in use check

Eliminate key in use check dependency on (CONFIG_BT_MAX_CONN > 1).

Signed-off-by: Ahmed Moheb <959392136cc845507c486a78b4e206e971c1e699@nordicsemi.no>

zephyrproject-rtos/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,finikorg/zephyr,finikorg/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,galak/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,galak/zephyr