Revert "Enable chained vbmeta for boot"

Revert "Allow init boot_block_device:lnk_file relabelto."

Revert submission 1514903-chain_vbmeta_redbull

Reason for revert: test b/174826519
Reverted Changes:
I1cae1ef76:Enable chained vbmeta for boot
I820cbaf20:Allow init boot_block_device:lnk_file relabelto.

Change-Id: I62db277a495a993f60ce1dcf9808c8e7ba43546c
(cherry picked from commit 9ae0b69cefff8f186302c9ed7b2c86545085ed74)
2 files changed