Revert "xfs: switch to multigrain timestamps"

Revert "xfs: switch to multigrain timestamps"

Source kernel commit: f798accd5987dc2280e0ba9055edf1124af46a5f

This reverts commit e44df2664746aed8b6dd5245eb711a0ce33c5cf5.

Users reported regressions due to enabling multi-grained timestamps
unconditionally. As no clear consensus on a solution has come up and the
discussion has gone back to the drawing board revert the infrastructure
changes for. If it isn't code that's here to stay, make it go away.

Message-ID: <20230920-keine-eile-c9755b5825db@brauner>
Acked-by: Jan Kara <jack@suse.cz>
Acked-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>