IB/hfi1: Delete an unneeded bool conversion

The result of an expression consisting of a single relational operator is
already of the bool type and does not need to be evaluated explicitly.

No functional change.

Link: https://lore.kernel.org/r/20210510120635.3636-1-thunder.leizhen@huawei.com


Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>