Revert "[CrashRecovery] Refactor SystemProperties as api"

Revert submission 2931990-cr-sysprop

Reason for revert: Causing CTS fail at b/323272250 b/323278067 b/323284822

Reverted changes: /q/submissionid:2931990-cr-sysprop

Change-Id: I6bd163296956357372b5e359872e6059cfbae112
5 files changed