Remove smoke and observe from SDK DEPS

DEPS

 # Copyright (c) 2012, 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.
 
 vars = {
   # The dart_root is the root of our sdk checkout. This is normally
   # simply sdk, but if using special gclient specs it can be different.
   "dart_root": "sdk",
 
   # We use mirrors of all github repos to guarantee reproducibility and
@@ skipping 65 matching lines @@
   "kernel_rev": "@11edd6208940d227dc0b2cf87a6518d2508c0858",
   "linter_tag": "@0.1.28",
   "logging_tag": "@0.11.3+1",
   "markdown_tag": "@0.11.0",
   "matcher_tag": "@0.12.0+2",
   "metatest_tag": "@0.2.2+2",
   "mime_rev": "@75890811d4af5af080351ba8a2853ad4c8df98dd",
   "mustache4dart_tag" : "@v1.0.10",
   "oauth2_tag": "@1.0.2",
   "observatory_pub_packages_rev": "@26aad88f1c1915d39bbcbff3cad589e2402fdcf1",
-  "observe_tag": "@0.13.5",
   "package_config_tag": "@1.0.0",
   "package_resolver_tag": "@1.0.2",
   "path_tag": "@1.3.9",
   "plugin_tag": "@0.2.0",
   "ply_rev": "@604b32590ffad5cbb82e4afef1d305512d06ae93",
   "pool_tag": "@1.2.4",
   "protobuf_tag": "@0.5.3",
   "pub_rev": "@3dd04bd17ba269ccdd34502a253041dd96ded3be",
   "pub_semver_tag": "@1.3.0",
   "quiver_tag": "@0.22.0",
   "resource_rev":"@a49101ba2deb29c728acba6fb86000a8f730f4b1",
   "root_certificates_rev": "@aed07942ce98507d2be28cbd29e879525410c7fc",
   "scheduled_test_tag": "@0.12.6",
   "shelf_static_tag": "@0.2.4",
   "shelf_packages_handler_tag": "@1.0.0",
   "shelf_tag": "@0.6.5+3",
   "shelf_web_socket_tag": "@0.2.1",
-  "smoke_tag" : "@v0.3.6+2",
   "source_map_stack_trace_tag": "@1.1.3",
   "source_maps-0.9.4_rev": "@38524",
   "source_maps_tag": "@0.10.1+2",
   "source_span_tag": "@1.2.4",
   "stack_trace_tag": "@1.6.6",
   "stream_channel_tag": "@1.5.0",
   "string_scanner_tag": "@1.0.0",
   "sunflower_rev": "@879b704933413414679396b129f5dfa96f7a0b1e",
   "test_reflective_loader_tag": "@0.1.0",
   "test_tag": "@0.12.15+6",
@@ skipping 133 matching lines @@
   Var("dart_root") + "/third_party/pkg/metatest":
       (Var("github_mirror") % "metatest") + Var("metatest_tag"),
   Var("dart_root") + "/third_party/pkg/mime":
       (Var("github_mirror") % "mime") + Var("mime_rev"),
   Var("dart_root") + "/third_party/pkg/mustache4dart":
       Var("chromium_git")
       + "/external/github.com/valotas/mustache4dart.git"
       + Var("mustache4dart_tag"),
   Var("dart_root") + "/third_party/pkg/oauth2":
       (Var("github_mirror") % "oauth2") + Var("oauth2_tag"),
-  Var("dart_root") + "/third_party/pkg/observe":
-      (Var("github_mirror") % "observe") + Var("observe_tag"),
   Var("dart_root") + "/third_party/observatory_pub_packages":
      (Var("github_mirror") % "observatory_pub_packages")
       + Var("observatory_pub_packages_rev"),
   Var("dart_root") + "/third_party/pkg_tested/package_config":
       (Var("github_mirror") % "package_config") +
       Var("package_config_tag"),
   Var("dart_root") + "/third_party/pkg_tested/package_resolver":
       "https://github.com/dart-lang/package_resolver.git" +
       Var("package_resolver_tag"),
   Var("dart_root") + "/third_party/pkg/path":
@@ skipping 19 matching lines @@
   Var("dart_root") + "/third_party/pkg/shelf":
       (Var("github_mirror") % "shelf") + Var("shelf_tag"),
   Var("dart_root") + "/third_party/pkg/shelf_packages_handler":
       (Var("github_mirror") % "shelf_packages_handler")
       + Var("shelf_packages_handler_tag"),
   Var("dart_root") + "/third_party/pkg/shelf_static":
       (Var("github_mirror") % "shelf_static") + Var("shelf_static_tag"),
   Var("dart_root") + "/third_party/pkg/shelf_web_socket":
       (Var("github_mirror") % "shelf_web_socket") +
       Var("shelf_web_socket_tag"),
-  Var("dart_root") + "/third_party/pkg/smoke":
-      (Var("github_mirror") % "smoke") + Var("smoke_tag"),
   Var("dart_root") + "/third_party/pkg/source_maps":
       (Var("github_mirror") % "source_maps") + Var("source_maps_tag"),
   Var("dart_root") + "/third_party/pkg/source_span":
       (Var("github_mirror") % "source_span") + Var("source_span_tag"),
   Var("dart_root") + "/third_party/pkg/source_map_stack_trace":
       (Var("github_mirror") % "source_map_stack_trace") +
       Var("source_map_stack_trace_tag"),
   Var("dart_root") + "/third_party/pkg/stack_trace":
       (Var("github_mirror") % "stack_trace") + Var("stack_trace_tag"),
   Var("dart_root") + "/third_party/pkg/stream_channel":
@@ skipping 284 matching lines @@
     # Update the Windows toolchain if necessary.
     'name': 'win_toolchain',
     'pattern': '.',
     'action': ['python', 'sdk/build/vs_toolchain.py', 'update'],
   },
   {
     "pattern": ".",
     "action": ["python", Var("dart_root") + "/tools/generate_buildfiles.py"],
   },
 ]