Remove replayq from app.src list

src/emqx.app.src

@@ -5,7 +5,7 @@
   {modules, []},
   {registered, []},
   {applications, [kernel,stdlib,jsx,gproc,gen_rpc,esockd,cowboy,
-                  replayq,sasl,os_mon]},
+                  sasl,os_mon]},
   {env, []},
   {mod, {emqx_app,[]}},
   {maintainers, ["Feng Lee <feng@emqx.io>"]},