http-push.c::add_send_request(): do not initialize transfer_request

That pointer will be assigned to new memory via

    request = xmalloc(sizeof(*request));

20 lines later unconditionally anyway, so it's safe to not assign it
to an arbitrary variable.
Signed-off-by: NStefan Beller <stefanbeller@googlemail.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

http-push.c

@@ -663,7 +663,7 @@ static void add_fetch_request(struct object *obj)
 
 static int add_send_request(struct object *obj, struct remote_lock *lock)
 {
-	struct transfer_request *request = request_queue_head;
+	struct transfer_request *request;
 	struct packed_git *target;
 
 	/* Keep locks active */