Remove empty extra_includes in BUCK

Summary: This is a fairly "last option" setting to work-around cyclic dependencies on includes - we don't need it present by default on targets.

Reviewed By: robertoaloi

Differential Revision: D84822066

fbshipit-source-id: 198e5c9802135fb6154605db5c61be9ce27af3e8

Author: michalmuskala

BUCK

@@ -41,7 +41,6 @@ erlang_application(
         "syntax_tools",
         ":taint_server",
     ],
-    extra_includes = [],
     includes = glob(["finer_taint/include/*.hrl"]),
     resources = [":taint_models"],
     version = "0.1.0",