Delete proxy and total samples, which have bit-rotted.

samples/tests/samples/samples.status

Index: samples/tests/samples/samples.status
===================================================================
--- samples/tests/samples/samples.status	(revision 9011)
+++ samples/tests/samples/samples.status	(working copy)
@@ -2,8 +2,6 @@
 # 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.
 
-proxy/*: Skip  # Not being maintained.
-
 [ $compiler == dartc ]
 chat/*: Skip
 
@@ -26,9 +24,6 @@
 [ $compiler == none && $runtime == drt ]
 dartcombat/dartcombat_test: Fail # Issue 2790
 
-[ $compiler == none && $runtime == drt && $checked ]
-proxy/mint_maker_fully_isolated_generated_test: Fail # type check fails, Issue 2792.
-
 [ ($runtime == chrome || $runtime == ff || $runtime == safari)) ]
 dartcombat/dartcombat_test: Skip # passes locally but timeout on bot?
 dartcombat_test: Skip
@@ -40,7 +35,6 @@
 dartcombat/dartcombat_test: Skip
 dartcombat_test: Skip
 swarm_test: Skip
-total/total_test: Skip
 swarm/swarm_test: Skip
 lib/layout/layout_test: Skip
 lib/touch/touch_test: Skip
@@ -48,12 +42,8 @@
 lib/util/util_test: Skip
 lib/view/view_test: Skip
 
-[ $runtime == vm && $checked ]
-proxy/mint_maker_fully_isolated_generated_test: Fail # issue 2519
-
 [ $compiler == dart2js && $browser ]
 dartcombat/dartcombat_test: Skip
-proxy/mint_maker_rpc_test: Pass # Issue 2254.
 
 [ $compiler == dart2js && $runtime == none ]
 *: Fail, Pass # TODO(ahe): Triage these tests.
@@ -72,9 +62,6 @@
 *: Skip
 
 [ $compiler == dart2js && $runtime == ie ]
-proxy/mint_maker_fully_isolated_generated_test: Fail # BUG(3304)
-proxy/mint_maker_promise_with_stubs_generated_test: Fail # BUG(3304)
-proxy/mint_maker_rpc_test: Fail # BUG(3304)
 swarm/swarm_test: Fail # BUG(3304)
 lib/touch/touch_test: Fail # Expectation: Solver. Expect.approxEquals(expected:9, actual:8.990625000000001, tolerance:0.0009) fails