[loader] Make recipe engine support examples/ module subdir

recipe_modules/time/example.py

Index: recipe_modules/time/example.py
diff --git a/recipe_modules/time/example.py b/recipe_modules/time/example.py
deleted file mode 100644
index b9f6445cd661cdf2be6c9567ffc6f7f62c48d174..0000000000000000000000000000000000000000
--- a/recipe_modules/time/example.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# Copyright 2014 The LUCI Authors. All rights reserved.
-# Use of this source code is governed under the Apache License, Version 2.0
-# that can be found in the LICENSE file.
-
-import datetime
-
-DEPS = [
-  'step',
-  'time',
-]
-
-
-def RunSteps(api):
-  now = api.time.time()
-  api.step('echo', ['echo', str(now)])
-  assert isinstance(api.time.utcnow(), datetime.datetime)
-
-
-def GenTests(api):
-  yield api.test('defaults')
-  yield api.test('seed_and_step') + api.time.seed(123) + api.time.step(2)