LU-930 ptlrpc: remove spurious error messages

LU-930 ptlrpc: remove spurious error messages

Stop errors being printed when a disconnect RPC times out, since
this error is ignored anyway, and adds no value to be printed.

Remove -61 = -ENODATA error from seq_server_init() since this is an
"expected" event for a new target and the error code is not useful.

Test-Parameters: trivial
Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Change-Id: I0f695409617061d46a1b910108cda05f863ebbe5
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/54285
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Reviewed-by: Sebastien Buisson <sbuisson@ddn.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>