Revert "Revert "Remove the bdev_type and sysfs_block_type SELinux attributes"" am: 7dc695097b

Original change: https://android-review.googlesource.com/c/device/google/crosshatch-sepolicy/+/1862754

Change-Id: Iaed9761e61ef8d047a3336b6429a0c339cb06248