Revert "Revert "WifiConfigStore: Remove legacy modules""

This reverts commit e9471f7d35cb5a39af883b5379812eeaba8b12d0.

Bug: 123929173
Test: ./frameworks/opt/net/wifi/tests/wifitests/runtests.sh
Test: Device boots up & connects to wifi networks.
Change-Id: Iaa141f902b589f70a03cdfb56a714aee62c2fe6a
9 files changed