[d-kernel] [PATCH un-def/p10 / un-def/c10f2 0/3] config: Cleanup unused configuration options

[Vasiliy Kovalev]

Remove certain configuration options that are unused due to dependencies
on inactive subsystems, preventing confusion during evaluation.

[PATCH 1/3] config: Remove ARCNET-related modules (CONFIG_ARCNET is not set)
[PATCH 2/3] config: Remove ATM-related modules (CONFIG_ATM is not set)
[PATCH 3/3] config: Remove ISDN-related modules (CONFIG_ISDN is not set)