Deprecated power /proc/acpi directories


Linux Kernel Configuration
└─>Power management and ACPI options
└─>ACPI (Advanced Configuration and Power Interface) Support
└─>Deprecated power /proc/acpi directories
In linux kernel since version 4.2 (release Date: 2015-08-30)  
For backwards compatibility, this option allows
deprecated power /proc/acpi/ directories to exist, even when
they have been replaced by functions in /sys.
The deprecated directories (and their replacements) include:
/proc/acpi/battery/* (/sys/class/power_supply/*) and
/proc/acpi/ac_adapter/* (sys/class/power_supply/*).
This option has no effect on /proc/acpi/ directories
and functions which do not yet exist in /sys.
This option, together with the proc directories, will be
deleted in the future.

Say N to delete power /proc/acpi/ directories that have moved to /sys.