Revert "md: implement ->set_read_only to hook into BLKROSET processing"
This reverts commit ab25f7cd which is commit 118cf084 upstream. It breaks the Android kernel abi and can be brought back in the future in an abi-safe way if it is really needed. Bug: 161946584 Change-Id: I6f11869ebbf73fed88b101bc13ddd029ff6d185d Signed-off-by:Greg Kroah-Hartman <gregkh@google.com>
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