Fix bihash bucket double unlock.

Change-Id: Icc9bef32d1bb2b8f277598c50c69343c81f22cd2
Signed-off-by: Tom Seidenberg <tseidenb@cisco.com>
diff --git a/src/vppinfra/bihash_template.c b/src/vppinfra/bihash_template.c
index 6980538..6e910fe 100644
--- a/src/vppinfra/bihash_template.c
+++ b/src/vppinfra/bihash_template.c
@@ -441,8 +441,7 @@
       tmp_b.refcnt = 1;
       CLIB_MEMORY_BARRIER ();
 
-      b->as_u64 = tmp_b.as_u64;
-      BV (clib_bihash_unlock_bucket) (b);
+      b->as_u64 = tmp_b.as_u64;	/* unlocks the bucket */
       return (0);
     }