fs: remove FS_AUTOFREEZE

Now that all filesystems have been converted over to stop using the
kthread freezer APIs we can remove FS_AUTOFREEZE and its check.

The following Coccinelle rule was used as to remove the flag:

spatch --sp-file remove-fs-autofreezeflag.cocci --in-place --timeout 120 --dir fs/ --jobs 12 --use-gitgrep
@ rm_auto_flag @
expression E1;
identifier fs_type;
@@

struct file_system_type fs_type = {
	.fs_flags = E1
-                   | FS_AUTOFREEZE
	,
};

Generated-by: Coccinelle SmPL
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
11 files changed