RDS: remove __init and __exit annotation

The trivial amount of memory saved isn't worth the cost of dealing with section
mismatches.

Signed-off-by: Zach Brown <zach.brown@oracle.com>
diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
index 37dab28..f25c483 100644
--- a/net/rds/ib_recv.c
+++ b/net/rds/ib_recv.c
@@ -1040,7 +1040,7 @@
 	return ret;
 }
 
-int __init rds_ib_recv_init(void)
+int rds_ib_recv_init(void)
 {
 	struct sysinfo si;
 	int ret = -ENOMEM;