REORG: include: move queue.h to haproxy/queue{,-t}.h

Nothing outstanding here. A number of call places were not justified and
removed.
diff --git a/src/lb_fas.c b/src/lb_fas.c
index 8967406..fc9ae51 100644
--- a/src/lb_fas.c
+++ b/src/lb_fas.c
@@ -18,10 +18,10 @@
 
 #include <haproxy/backend.h>
 #include <haproxy/api.h>
+#include <haproxy/queue.h>
 #include <import/eb32tree.h>
 
 #include <types/server.h>
-#include <proto/queue.h>
 
 
 /* Remove a server from a tree. It must have previously been dequeued. This