[automerger skipped] Merge "Remove the usage of hidden API - setIsAvailable()...

[automerger skipped] Merge "Remove the usage of hidden API - setIsAvailable() from Vpn" am: 93b20feb am: 961a73e0 am: 172bc952 -s ours am: df6aaa94 -s ours

am skip reason: skip tag Change-Id I3b88f22fffde3dd4000d28342ed07209c7121a37 with SHA-1 02ec9e9d is already in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1653934

Change-Id: Ifd1804c147b0e3ece053d2a63f6329d4d1ad277a