[automerger skipped] Revert "[DO NOT MERGE] wifi: remove certificates for network factory reset" am: b17cee9e7a -s ours am: afe82a88ea -s ours am: ad4285a841 -s ours am: 9b5b5e05c9 -s ours am: 22ad446d5e -s ours am: c977b11f6b -s ours

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Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/net/wifi/+/21302818

Change-Id: I399cf33212adad49abd9d100eb94717bcf405b09
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>