LU-16160 revert: "llite: clear stale page's uptodate bit"

LU-16160 revert: "llite: clear stale page's uptodate bit"

This reverts commit 5b911e03261c3de6b0c2934c86dd191f01af4f2f
which caused a bug in cl_page_own() race with ll_releasepage()
and cl_pagevec_put() assertion failure.

Signed-off-by: Bobi Jam <bobijam@whamcloud.com>
Change-Id: Icdb8c60f4d992c9976670e1b06c5bab5ef3a3954
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/49541
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Qian Yingjin <qian@ddn.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>