[automerger skipped] Revert "[DO NOT MERGE] wifi: remove certificates for network factory reset" am: 5d9f165bed -s ours

am skip reason: skipped by user qiangjiang

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/net/wifi/+/21300836

Change-Id: I2b0681c61ea86fd724ea1247318c7cca95c07f94
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>