sunrpc: remove unnecessary test in rpc_task_set_client()

In rpc_task_set_client(), testing for a NULL clnt is not necessary, as
clnt should always be a valid pointer to a rpc_client.
Signed-off-by: Thiago Rafael Becker <trbecker@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

net/sunrpc/clnt.c

@@ -1076,8 +1076,6 @@ void rpc_task_set_transport(struct rpc_task *task, struct rpc_clnt *clnt)
 static
 void rpc_task_set_client(struct rpc_task *task, struct rpc_clnt *clnt)
 {
-
-	if (clnt != NULL) {
 	rpc_task_set_transport(task, clnt);
 	task->tk_client = clnt;
 	refcount_inc(&clnt->cl_count);
@@ -1093,7 +1091,6 @@ void rpc_task_set_client(struct rpc_task *task, struct rpc_clnt *clnt)
 	spin_lock(&clnt->cl_lock);
 	list_add_tail(&task->tk_task, &clnt->cl_tasks);
 	spin_unlock(&clnt->cl_lock);
-	}
 }
 
 static void