nfs_write(): do not call ncl_pager_setsize() after clearing TDP2_SBPAGES
This might unnecessary truncate file undoing extension done by the write.
Reported by: Yasuhiro Kimura <yasu@utahime.org>
Reviewed by: rmacklem
Tested by: rmacklem, Yasuhiro Kimura <yasu@utahime.org>
MFC after: 6 days
Sponsored by: The FreeBSD Foundation