Revert "Set earlyBootEnded before apex starts"

Revert "Cryptographic security for MAX_BOOT_LEVEL"

Revert submission 1660531-max-boot-level-crypto

Reason for revert: broken test com.android.tests.odsign.OnDeviceSigningHostTest#verifyArtUpgradeSignsFiles on aosp-master on aosp_cf_x86_64_phone-userdebug at 7261517

Reverted Changes:
Ia3b968afc:Set earlyBootEnded before apex starts
Ia69891291:Expose AID_KEYSTORE
I12530cd13:Cryptographic security for MAX_BOOT_LEVEL

Bug: 184635938
Change-Id: Ibf63734a02a2c132142671c0fae5d0177bf46079
Test: forrest run for the broken test