Revert "Build Observatory with runtime"

runtime/observatory/pubspec.yaml

Index: runtime/observatory/pubspec.yaml
diff --git a/runtime/observatory/pubspec.yaml b/runtime/observatory/pubspec.yaml
deleted file mode 100644
index e237f6e9e7968ca25f32af212fdf3d915c466287..0000000000000000000000000000000000000000
--- a/runtime/observatory/pubspec.yaml
+++ /dev/null
@@ -1,69 +0,0 @@
-name: observatory
-version: 1.6.0-dev.1
-dependencies:
-  args: any
-  polymer: any
-  unittest: any
-dependency_overrides:
-  analyzer:
-    path: ../../third_party/observatory_pub_packages/analyzer
-  args:
-    path: ../../third_party/observatory_pub_packages/args
-  barback:
-    path: ../../third_party/observatory_pub_packages/barback
-  browser:
-    path: ../../third_party/observatory_pub_packages/browser
-  code_transformers:
-    path: ../../third_party/observatory_pub_packages/code_transformers
-  collection:
-    path: ../../third_party/observatory_pub_packages/collection
-  csslib:
-    path: ../../third_party/observatory_pub_packages/csslib
-  html5lib:
-    path: ../../third_party/observatory_pub_packages/html5lib
-  logging:
-    path: ../../third_party/observatory_pub_packages/logging
-  matcher:
-    path: ../../third_party/observatory_pub_packages/matcher
-  observe:
-    path: ../../third_party/observatory_pub_packages/observe
-  path:
-    path: ../../third_party/observatory_pub_packages/path
-  polymer:
-    path: ../../third_party/observatory_pub_packages/polymer
-  polymer_expressions:
-    path: ../../third_party/observatory_pub_packages/polymer_expressions
-  pool:
-    path: ../../third_party/observatory_pub_packages/pool
-  smoke:
-    path: ../../third_party/observatory_pub_packages/smoke
-  source_maps:
-    path: ../../third_party/observatory_pub_packages/source_maps
-  source_span:
-    path: ../../third_party/observatory_pub_packages/source_span
-  stack_trace:
-    path: ../../third_party/observatory_pub_packages/stack_trace
-  string_scanner:
-    path: ../../third_party/observatory_pub_packages/string_scanner
-  template_binding:
-    path: ../../third_party/observatory_pub_packages/template_binding
-  unittest:
-    path: ../../third_party/observatory_pub_packages/unittest
-  utf:
-    path: ../../third_party/observatory_pub_packages/utf
-  watcher:
-    path: ../../third_party/observatory_pub_packages/watcher
-  web_components:
-    path: ../../third_party/observatory_pub_packages/web_components
-  yaml:
-    path: ../../third_party/observatory_pub_packages/yaml
-transformers:
-- polymer:
-    entry_points:
-    - web/index.html
-    - web/index_devtools.html
-    inline_stylesheets:
-      lib/src/elements/css/shared.css: false
-- $dart2js:
-    suppressWarnings: false
-    $exclude: web/main.dart