Revert "Enable LZ4 compression for ramdisks" This reverts commit 882e28b388f32c7a826de154050654051f383bfc. Reason for revert: unblock b/159583556 Bug: 159583556 Change-Id: I356f374742cbf731fe27c15c20e717b822b84e04 Signed-off-by: Jason Chiu <jasoncschiu@google.com>