block: Remove superfluous semicolons

Fixes: 132ada8
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200218094402.26625-4-philmd@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

block.c

@@ -2435,13 +2435,13 @@ BdrvChild *bdrv_root_attach_child(BlockDriverState *child_bs,
     if (bdrv_get_aio_context(child_bs) != ctx) {
         ret = bdrv_try_set_aio_context(child_bs, ctx, &local_err);
         if (ret < 0 && child_role->can_set_aio_ctx) {
-            GSList *ignore = g_slist_prepend(NULL, child);;
+            GSList *ignore = g_slist_prepend(NULL, child);
             ctx = bdrv_get_aio_context(child_bs);
             if (child_role->can_set_aio_ctx(child, ctx, &ignore, NULL)) {
                 error_free(local_err);
                 ret = 0;
                 g_slist_free(ignore);
-                ignore = g_slist_prepend(NULL, child);;
+                ignore = g_slist_prepend(NULL, child);
                 child_role->set_aio_ctx(child, ctx, &ignore);
             }
             g_slist_free(ignore);