Revert "Attampt1. This change should be a case for normal commit."

This reverts commit 7c8d57836a5776215a17497aa007407a368ab582.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> Attampt1. This change should be a case for normal commit.
> 
> Change-Id: I23145d004da83f4c66d7fa500033f07ab8c7cf45
> Reviewed-on: https://chromium-review.googlesource.com/691358
> Reviewed-by: Chan Li <chanli@chromium.org>

TBR=chanli@chromium.org

Change-Id: I2c99d9dd80d31ec322391943d557a4d195a5f601
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/691221
Reviewed-by: Chan Li <chanli@chromium.org>
diff --git a/extract_deps_info_pipeline.py b/extract_deps_info_pipeline.py
deleted file mode 100644
index 994dcaa..0000000
--- a/extract_deps_info_pipeline.py
+++ /dev/null
@@ -1,59 +0,0 @@
-# Copyright 2015 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 gae_libs.gitiles.cached_gitiles_repository import CachedGitilesRepository
-from gae_libs.http.http_client_appengine import HttpClientAppengine
-from gae_libs.pipeline_wrapper import BasePipeline
-from libs.deps import chrome_dependency_fetcher
-from services import deps
-
-
-class ExtractDEPSInfoPipeline(BasePipeline):
-  """A pipeline to extract information of DEPS and dependency rolls."""
-
-  # Arguments number differs from overridden method - pylint: disable=W0221
-  def run(self, failure_info, change_logs):
-    """
-    Args:
-      failure_info (dict): Output of pipeline DetectFirstFailurePipeline.run().
-      change_logs (dict): Output of pipeline PullChangelogPipeline.run().
-
-    Returns:
-      A dict with the following form:
-      {
-        'deps': {
-          'path/to/dependency/': {
-            'revision': 'git_hash',
-            'repo_url': 'https://url/to/dependency/repo.git',
-          },
-          ...
-        },
-        'deps_rolls': {
-          'git_revision': [
-            {
-              'path': 'src/path/to/dependency/',
-              'repo_url': 'https://url/to/dependency/repo.git',
-              'new_revision': 'git_hash1',
-              'old_revision': 'git_hash2',
-            },
-            ...
-          ],
-          ...
-        }
-      }
-    """
-
-    chromium_revision = failure_info['chromium_revision']
-    os_platform = deps.GetOSPlatformName(failure_info['master_name'],
-                                         failure_info['builder_name'])
-
-    dep_fetcher = chrome_dependency_fetcher.ChromeDependencyFetcher(
-        CachedGitilesRepository.Factory(HttpClientAppengine()))
-
-    return {
-        'deps':
-            deps.GetDependencies(chromium_revision, os_platform, dep_fetcher),
-        'deps_rolls':
-            deps.DetectDependencyRolls(change_logs, os_platform, dep_fetcher)
-    }