Start pulling pub from its own repo.

sdk/lib/_internal/pub/pub.status

Index: sdk/lib/_internal/pub/pub.status
diff --git a/sdk/lib/_internal/pub/pub.status b/sdk/lib/_internal/pub/pub.status
deleted file mode 100644
index 8776cae58357b07accc34cff6893380a1e5d29cf..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/pub/pub.status
+++ /dev/null
@@ -1,19 +0,0 @@
-# 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.
-
-test/dart2js/compiles_generated_file_from_dependency_test: Pass, Slow
-test/serve/web_socket/url_to_asset_id_test: Pass, Slow
-test/transformer/loads_a_diamond_transformer_dependency_graph_test: Pass, Slow
-
-# Pub only runs on the VM, so just rule out all compilers.
-[ $compiler == dart2js ]
-*: Skip
-
-# Pub only runs on the standalone VM, not the browser.
-[ $runtime == drt || $runtime == dartium || $runtime == opera ]
-*: Skip
-
-[ $runtime == vm && $system == windows ]
-test/run/app_can_read_from_stdin_test: Fail # Issue 19448
-test/run/forwards_signal_posix_test: SkipByDesign