[infra] Begin removing gyp

runtime/observatory/observatory.gypi

Index: runtime/observatory/observatory.gypi
diff --git a/runtime/observatory/observatory.gypi b/runtime/observatory/observatory.gypi
deleted file mode 100644
index be393ca32bab2791fdacafaab5ef3bf56017f160..0000000000000000000000000000000000000000
--- a/runtime/observatory/observatory.gypi
+++ /dev/null
@@ -1,63 +0,0 @@
-# Copyright (c) 2014, the Dart 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.
-
-{
-  'variables': {
-    'gen_source_dir': '<(SHARED_INTERMEDIATE_DIR)',
-  },
-  'targets': [
-    {
-      'target_name': 'build_observatory',
-      'type': 'none',
-      'dependencies': [
-        'dart_bootstrap#host',
-      ],
-      'toolsets': ['host'],
-      'includes': [
-        'observatory_sources.gypi',
-      ],
-      'actions': [
-        {
-          'action_name': 'pub_build_observatory',
-          'inputs': [
-            '../../tools/observatory_tool.py',
-            '<@(_sources)',
-          ],
-          'outputs': [
-            '<(PRODUCT_DIR)/observatory/build/web/index.html',
-          ],
-          'action': [
-            'python',
-            '../tools/observatory_tool.py',
-            '--sdk=True',
-            '--dart-executable',
-            '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)dart_bootstrap<(EXECUTABLE_SUFFIX)',
-            '--directory', 'observatory',
-            '--command', 'build',
-            '<(PRODUCT_DIR)/observatory/build'
-          ],
-        },
-        {
-          'action_name': 'deploy_observatory',
-          'inputs': [
-            '../../tools/observatory_tool.py',
-            '<(PRODUCT_DIR)/observatory/build/web/index.html',
-          ],
-          'outputs': [
-            '<(PRODUCT_DIR)/observatory/deployed/web/index.html',
-          ],
-          'action': [
-            'python',
-            '../tools/observatory_tool.py',
-            '--sdk=True',
-            '--dart-executable',
-            '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)dart_bootstrap<(EXECUTABLE_SUFFIX)',
-            '--directory', '<(PRODUCT_DIR)/observatory/',
-            '--command', 'deploy',
-          ],
-        }
-      ],
-    },
-  ],
-}