RDMA/hfi1: Fix typo in comment

Delete the redundant word 'and'.

Link: https://lore.kernel.org/r/20220606123419.29109-1-wangxiang@cdjrlc.comSigned-off-by: Xiang wangx <wangxiang@cdjrlc.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

drivers/infiniband/hw/hfi1/pio_copy.c

@@ -172,7 +172,7 @@ static inline void jcopy(u8 *dest, const u8 *src, u32 n)
 }
 
 /*
- * Read nbytes from "from" and and place them in the low bytes
+ * Read nbytes from "from" and place them in the low bytes
  * of pbuf->carry.  Other bytes are left as-is.  Any previous
  * value in pbuf->carry is lost.
  *