ext4: remove lazytime/nolazytime mount options handled by MS_LAZYTIME

ext4: remove lazytime/nolazytime mount options handled by MS_LAZYTIME

The lazytime and nolazytime mount options were added temporarily back in
2015 with commit d1a47ce208a1 ("ext4: add optimization for the lazytime
mount option"). It think it has been enough time for the util-linux with
lazytime support to get widely used. Remove the mount options.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Link: https://lore.kernel.org/r/20211222104517.11187-1-lczerner@redhat.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>