IB/qib: Fix repeated "in" within comments

Delete the redundant word 'in'.

Link: https://lore.kernel.org/r/20220724074407.18552-1-wangjianli@cdjrlc.com


Signed-off-by: wangjianli <wangjianli@cdjrlc.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>