configfs: kill configfs_sb

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --cc fs/configfs/configfs_internal.h
Simple merge

diff --cc fs/configfs/dir.c
Simple merge

diff --cc fs/configfs/inode.c
Simple merge

diff --cc fs/configfs/mount.c
Simple merge

diff --cc fs/configfs/symlink.c
Simple merge