NFSD: remove vanity comments

[ Upstream commit ea49dc79 ]

Including one's name in copyright claims is appropriate.  Including it
in random comments is just vanity.  After 2 decades, it is time for
these to be gone.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>