tree b041bfba68ba7a622e83098f5d4826cf64aecc5e
parent 01eca84d299872c2ebab9bd8fee93196e2f67e60
author xshu <xshu@google.com> 1568313108 -0700
committer Greg Wroblewski <musashi@google.com> 1579227532 -0800

[MAC rand] Removing persistent storage

Will now calculate the randomized MAC address directly for new wifi
networks.
For existing networks that already have saved randomized MAC address, we
will continue to use the saved MAC.

Bug: 140065828
Test: unit tests before and after factory reset
Test: Verified that new MAC address entries are not populated into
WifiConfigStore.xml
Test: Manually verified calculated MAC addresses are consistent and
valid.
Test: Manually verified that the device secret is persisted over
different builds

Merged-In: I4b4e2cc6fe304d277661c4743e4fb86bb7500f16
Merged-In: Ie216fbaf33e2582ae1a0030c5046b0d4162255d9
(cherry picked from commit Ie216fbaf33e2582ae1a0030c5046b0d4162255d9)

Change-Id: Ibb8f04c0fed9b5ac564ba65c305c7e1f00c43975
(cherry picked from commit 84c9ba1c7c5271215d7a50ef23c5d57c0b38bbdb)