Revert "Enable acs for hotspot channel selection"

This reverts commit b8b86ec1082f38402d74ab51553adb42ef8e8ff3.

Bug: 71878020
Test: tests/wifitests/runtests.sh (on walleye)
Test: manual (on walleye)

Manual test
-----------
- enable 5 GHz wifi hotspot from settings
$ adb logcat -d -b main hostapd '*:S' -e 'ACS' | wc -l
0
- verify that another phone shows walleye's softap in scan results

Change-Id: I12b80a874ec859ef166f94bf5bb26442fcdba1eb
6 files changed