Remove service-compiler related code.

tests/servicec/input_files/bad_return_type_3.idl

Index: tests/servicec/input_files/bad_return_type_3.idl
diff --git a/tests/servicec/input_files/bad_return_type_3.idl b/tests/servicec/input_files/bad_return_type_3.idl
deleted file mode 100644
index 4b21904f6a6cfda971b140dfc7044de9714d7730..0000000000000000000000000000000000000000
--- a/tests/servicec/input_files/bad_return_type_3.idl
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2015, the Dartino project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-service Foo {
-  // A struct is not a valid return type.
-  Bar bar();  // badReturnType
-}
-
-struct Bar {
-}