wifi: Modify the SAR power levels interface

Remove the now unused config value.

Bug: 62437848
Test: Manual tests
Change-Id: I24b2b9e57cec5052037a86dbd53fad7afed6f9d8
(cherry picked from commit e9dad7eb65aede2ba0b020140a9aad2e9293312c)
2 files changed