orphan sysvfs

This code has been stale for years and I have no way to test it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -20323,8 +20323,7 @@ S:	Maintained
 F:	drivers/platform/x86/system76_acpi.c
 
 SYSV FILESYSTEM
-M:	Christoph Hellwig <hch@infradead.org>
-S:	Maintained
+S:	Orphan
 F:	Documentation/filesystems/sysv-fs.rst
 F:	fs/sysv/
 F:	include/linux/sysv_fs.h