IB/hfi1: Remove unnecessary header

While running perftests, there is a significant utilization of the
random number daemon. This is due to the linux/random.h header being
included in qp.c and verbs.c. However, none of the functions from this
header are being used in these files, so remove the unnecessary header.

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/staging/rdma/hfi1/qp.c b/drivers/staging/rdma/hfi1/qp.c
index 91eb423..c626508 100644
--- a/drivers/staging/rdma/hfi1/qp.c
+++ b/drivers/staging/rdma/hfi1/qp.c
@@ -49,7 +49,6 @@
 #include <linux/vmalloc.h>
 #include <linux/hash.h>
 #include <linux/module.h>
-#include <linux/random.h>
 #include <linux/seq_file.h>
 #include <rdma/rdma_vt.h>
 #include <rdma/rdmavt_qp.h>
diff --git a/drivers/staging/rdma/hfi1/verbs.c b/drivers/staging/rdma/hfi1/verbs.c
index f3531fd..ae92ac5 100644
--- a/drivers/staging/rdma/hfi1/verbs.c
+++ b/drivers/staging/rdma/hfi1/verbs.c
@@ -52,7 +52,6 @@
 #include <linux/utsname.h>
 #include <linux/rculist.h>
 #include <linux/mm.h>
-#include <linux/random.h>
 #include <linux/vmalloc.h>
 
 #include "hfi.h"