Remove all .gyp and .gypi files.

third_party/cython/python_module.gypi

Index: third_party/cython/python_module.gypi
diff --git a/third_party/cython/python_module.gypi b/third_party/cython/python_module.gypi
deleted file mode 100644
index 138c41696600639dd024756810776d85ac7ecbe0..0000000000000000000000000000000000000000
--- a/third_party/cython/python_module.gypi
+++ /dev/null
@@ -1,29 +0,0 @@
-# Copyright 2014 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.
-
-{
-  'variables': {
-    'python_module_destination': '<(PRODUCT_DIR)/python/<(python_base_module)',
-  },
-  'rules': [
-    {
-      'rule_name': '<(_target_name)_cp_python',
-      'extension': 'py',
-      'inputs': [
-        '<(DEPTH)/build/cp.py',
-      ],
-      'outputs': [
-        '<(python_module_destination)/<(RULE_INPUT_NAME)',
-      ],
-      'action': [
-        'python',
-        '<@(_inputs)',
-        '<(RULE_INPUT_PATH)',
-        '<@(_outputs)',
-      ],
-      'message': 'Moving <(RULE_INPUT_PATH) to its destination',
-    },
-  ],
-  'hard_dependency': 1,
-}