Update emqx.app.src

src/emqx.app.src

@@ -3,7 +3,7 @@
               {vsn,"3.0"},
               {modules,[]},
               {registered,[emqx_sup]},
-              {applications,[kernel,stdlib,gproc,gen_rpc,lager,esockd,mochiweb,lager_syslog,pbkdf2,bcrypt,clique,jsx]},
+              {applications,[kernel,stdlib,gproc,lager,esockd,mochiweb,lager_syslog,pbkdf2,bcrypt,clique,jsx]},
               {env,[]},
               {mod,{emqx_app,[]}},
               {maintainers,["Feng Lee <feng@emqtt.io>"]},