Revert "Track libcore changes for OpenSSLKey"

This reverts commit cc1fc6b6adc1edc2acaa42205b4ec5ca00bfd353.
Revert "Add TLS Channel ID support to SSLCertificateSocketFactory."

This reverts commit 4ef6c9b6a16c9b65699705aaa64977fc60dd3331.
Revert "Switch over to getting 12-/24-hour time formats from CLDR via icu4c."

This reverts commit 4caba61ea0433099fc94e61221d02542c34e9e3a.
AudioService: improve initial safe volume delay

AudioService relies on a valid mmc in order to enforce the headset
volume limitation or not. There is a timeout to enforce the limitation
if no mcc is configured after boot.
Until this timeout is reached or a valid SIM is detected the headset
volume is not limited.

This change makes that the last known volume limitation state (enforced or
not) is persisted so that next time we boot, last known state is applied until
a new mcc is configured if any. In most cases, the mcc does not change from one
boot to the next and we do the right thing. If teh mcc does change, the correct
policy will be enforced when the mcc is detected or after the timeout.

Also fix a bug where the volume panel was not displayed if the limitation mechanism
is triggered at the first press on VOL+ key.

Bug 7455275.

Change-Id: Id0f2996d893d38c6a14f4f9e4a0e9e3be17ef127
Revert "Track a typo fix in hidden libcore API."

This reverts commit 26df61683a6dacc3cf193e647f9de91d683772ca.
Revert "Reduce emulator logspam"

This reverts commit 325be8a1ea03308de2ac35d613a2fe751bf16d94.
More weird derp fixes