Revert "Add luci_migration recipe module."

This reverts commit 2a1ca3f6.

Reason for revert: to be replaced by recipe_engine runtime module
in https://chromium-review.googlesource.com/#/c/infra/luci/recipes-py/+/759677  

Original change's description:
> Add luci_migration recipe module.
> 
> R=​iannucci@chromium.org
> 
> Bug: 782460
> Change-Id: I022deb4d8e3cee8d48e1acccc78f8681490c72b9
> Reviewed-on: https://chromium-review.googlesource.com/757820
> Commit-Queue: Andrii Shyshkalov <tandrii@chromium.org>
> Reviewed-by: Robbie Iannucci <iannucci@chromium.org>

TBR=iannucci@chromium.org,tandrii@chromium.org

Change-Id: Ieb874ad42b939edb66e35db3cfed0b8b8746e70e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 782460
Reviewed-on: https://chromium-review.googlesource.com/759357Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>
Commit-Queue: Andrii Shyshkalov <tandrii@chromium.org>

recipes/README.recipes.md

@@ -13,7 +13,6 @@
   * [gitiles](#recipe_modules-gitiles)
   * [gsutil](#recipe_modules-gsutil)
   * [infra_paths](#recipe_modules-infra_paths)
-  * [luci_migration](#recipe_modules-luci_migration)
   * [presubmit](#recipe_modules-presubmit)
   * [rietveld](#recipe_modules-rietveld)
   * [tryserver](#recipe_modules-tryserver)
@@ -32,7 +31,6 @@
   * [gitiles:examples/full](#recipes-gitiles_examples_full)
   * [gsutil:examples/full](#recipes-gsutil_examples_full)
   * [infra_paths:examples/full](#recipes-infra_paths_examples_full)
-  * [luci_migration:tests/full](#recipes-luci_migration_tests_full)
   * [presubmit:examples/full](#recipes-presubmit_examples_full)
   * [rietveld:examples/full](#recipes-rietveld_examples_full)
   * [tryserver:examples/full](#recipes-tryserver_examples_full)
@@ -614,30 +612,6 @@ It returns git_cache path if it is defined (Buildbot world), otherwise
 uses the more generic [CACHE]/git path (LUCI world).
 
 — **def [initialize](/recipes/recipe_modules/infra_paths/api.py#11)(self):**
-### *recipe_modules* / [luci\_migration](/recipes/recipe_modules/luci_migration)
-
-[DEPS](/recipes/recipe_modules/luci_migration/__init__.py#5): [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/properties][recipe_engine/recipe_modules/properties]
-
-#### **class [LuciMigrationApi](/recipes/recipe_modules/luci_migration/api.py#8)([RecipeApi][recipe_engine/wkt/RecipeApi]):**
-
-This module assists in migrating builders from Buildbot to pure LUCI stack.
-
-Finishing migration means you no longer depend on this module.
-
-&emsp; **@property**<br>&mdash; **def [is\_luci](/recipes/recipe_modules/luci_migration/api.py#18)(self):**
-
-True if runs on LUCI stack.
-
-&emsp; **@property**<br>&mdash; **def [is\_prod](/recipes/recipe_modules/luci_migration/api.py#23)(self):**
-
-True if this builder is in production.
-
-Typical usage is to modify steps which produce external side-effects so that
-non-production runs of the recipe do not affect production data.
-
-Examples:
-  * Uploading to an alternate google storage file name when in non-prod mode
-  * Appending a 'non-production' tag to external RPCs
 ### *recipe_modules* / [presubmit](/recipes/recipe_modules/presubmit)
 
 [DEPS](/recipes/recipe_modules/presubmit/__init__.py#1): [recipe\_engine/context][recipe_engine/recipe_modules/context], [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/python][recipe_engine/recipe_modules/python], [recipe\_engine/step][recipe_engine/recipe_modules/step]
@@ -843,11 +817,6 @@ Move things around in a loop!
 [DEPS](/recipes/recipe_modules/infra_paths/examples/full.py#7): [infra\_paths](#recipe_modules-infra_paths), [recipe\_engine/path][recipe_engine/recipe_modules/path], [recipe\_engine/platform][recipe_engine/recipe_modules/platform], [recipe\_engine/properties][recipe_engine/recipe_modules/properties], [recipe\_engine/step][recipe_engine/recipe_modules/step]
 
 &mdash; **def [RunSteps](/recipes/recipe_modules/infra_paths/examples/full.py#16)(api):**
-### *recipes* / [luci\_migration:tests/full](/recipes/recipe_modules/luci_migration/tests/full.py)
-
-[DEPS](/recipes/recipe_modules/luci_migration/tests/full.py#7): [luci\_migration](#recipe_modules-luci_migration), [recipe\_engine/step][recipe_engine/recipe_modules/step]
-
-&mdash; **def [RunSteps](/recipes/recipe_modules/luci_migration/tests/full.py#13)(api):**
 ### *recipes* / [presubmit:examples/full](/recipes/recipe_modules/presubmit/examples/full.py)
 
 [DEPS](/recipes/recipe_modules/presubmit/examples/full.py#5): [presubmit](#recipe_modules-presubmit)

recipes/recipe_modules/luci_migration/__init__.py

-# Copyright 2017 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-DEPS = [
-  'recipe_engine/path',
-  'recipe_engine/properties',
-]
-
-from recipe_engine.recipe_api import Property
-from recipe_engine.config import ConfigGroup, Single
-
-PROPERTIES = {
-  '$depot_tools/luci_migration': Property(
-    help='Properties specifically for the luci_migration module',
-    param_name='migration_properties',
-    kind=ConfigGroup(
-      # Whether builder runs on LUCI stack.
-      is_luci=Single(bool),
-      # Whether builder is in production.
-      is_prod=Single(bool),
-    ),
-    default={},
-  ),
-}

recipes/recipe_modules/luci_migration/api.py

-# Copyright 2017 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-from recipe_engine import recipe_api
-
-
-class LuciMigrationApi(recipe_api.RecipeApi):
-  """This module assists in migrating builders from Buildbot to pure LUCI stack.
-
-  Finishing migration means you no longer depend on this module.
-  """
-
-  def __init__(self, migration_properties, **kwargs):
-    super(LuciMigrationApi, self).__init__(**kwargs)
-    self._migration_properties = migration_properties
-
-  @property
-  def is_luci(self):
-    """True if this recipe is currently running on LUCI stack."""
-    return bool(self._migration_properties.get('is_luci', False))
-
-  @property
-  def is_prod(self):
-    """True if this recipe is currently running in production.
-
-    Typical usage is to modify steps which produce external side-effects so that
-    non-production runs of the recipe do not affect production data.
-
-    Examples:
-      * Uploading to an alternate google storage file name when in non-prod mode
-      * Appending a 'non-production' tag to external RPCs
-    """
-    return bool(self._migration_properties.get('is_prod', True))

recipes/recipe_modules/luci_migration/test_api.py

-# Copyright 2017 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-from recipe_engine import recipe_test_api
-
-
-class LuciMigrationTestApi(recipe_test_api.RecipeTestApi):
-  def __call__(self, is_luci, is_prod):
-    """Simulate luci migration state of a builder."""
-    assert isinstance(is_luci, bool), '%r (%s)' % (is_luci, type(is_luci))
-    assert isinstance(is_prod, bool), '%r (%s)' % (is_prod, type(is_prod))
-    ret = self.test(None)
-    ret.properties = {
-      '$depot_tools/luci_migration': {
-        'is_luci': is_luci,
-        'is_prod': is_prod,
-      },
-    }
-    return ret

recipes/recipe_modules/luci_migration/tests/full.expected/basic.json

-[
-  {
-    "cmd": [],
-    "name": "show properties",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@result@is_luci: True@@@",
-      "@@@STEP_LOG_LINE@result@is_prod: False@@@",
-      "@@@STEP_LOG_END@result@@@"
-    ]
-  },
-  {
-    "name": "$result",
-    "recipe_result": null,
-    "status_code": 0
-  }
-]
\ No newline at end of file

recipes/recipe_modules/luci_migration/tests/full.py

-# Copyright 2017 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-import json
-
-DEPS = [
-  'depot_tools/luci_migration',
-  'recipe_engine/step',
-]
-
-
-def RunSteps(api):
-  api.step('show properties', [])
-  api.step.active_result.presentation.logs['result'] = [
-    'is_luci: %r' % (api.luci_migration.is_luci,),
-    'is_prod: %r' % (api.luci_migration.is_prod,),
-  ]
-
-
-def GenTests(api):
-  yield api.test('basic') + api.luci_migration(is_luci=True, is_prod=False)