Remove MIPS support

tests/standalone/standalone.status

 # Copyright (c) 2013, 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.
 
 # WARNING:
 # Tests using the multitest feature where failure is expected should *also* be
 # listed in tests/lib/analyzer/analyze_tests.status without the "standalone"
 # prefix.
 
 io/raw_socket_test: Pass, RuntimeError # Issue 28288
@@ skipping 101 matching lines @@
 *: Skip # Issue 28649
 
 [ $compiler == dart2js ]
 *: SkipByDesign
 
 [ $runtime == vm && ($arch == arm || $arch == arm64) ]
 io/file_stream_test: Skip # Issue 26109
 io/file_typed_data_test: Skip # Issue 26109
 io/file_input_stream_test: Skip # Issue 26109
 
-[ $runtime != vm || $arch == arm || $arch == arm64 || $arch == mips || ($system == windows && $mode == debug) ]
+[ $runtime != vm || $arch == arm || $arch == arm64 || ($system == windows && $mode == debug) ]
 fragmentation_test: Skip # VM test uses too much memory for small systems.
 
-[ $arch == simarm || $arch == simarmv6 || $arch == simarmv5te || $arch == simmips ]
+[ $arch == simarm || $arch == simarmv6 || $arch == simarmv5te ]
 out_of_memory_test: Skip # passes on Mac, crashes on Linux
 oom_error_stacktrace_test: Skip # Fails on Linux
 
-[ $arch == simmips ]
-io/socket_bind_test: Pass, Fail # Issue 28315
-io/http_server_response_test: Pass, Crash # Issue 29012
-
 [ ($arch == simarm || $arch == simdbc || $arch == simdbc64) && $mode == debug && $checked ]
 io/web_socket_test: Pass, Fail # Issue 26814
 
-[ $arch == mips ]
-io/file_stat_test: Fail # Issue 17440
-io/process_sync_test: Skip # Starts 10 dart subprocesses, uses too much memory.
-io/signals_test: Skip # Starts 10 dart subprocesses, uses too much memory
-io/socket_source_address_test: Fail # Issue 22597
-
-[ $arch == mips && $mode == debug ]
-io/web_socket_test: SkipSlow # Times out. Issue 20352
-io/test_runner_test: Skip # Flakily times out in a subtest. Issue 201351
-io/http_client_stays_alive_test: Skip # Timing dependent test, MIPS machine too slow.
-
 [ $compiler == none && $runtime == dartium && ! $checked ]
 assert_test: Fail # Issue 14651.
 
 [ $compiler == dart2analyzer ]
 io/directory_invalid_arguments_test: StaticWarning
 io/process_invalid_arguments_test: StaticWarning
 io/raw_secure_server_socket_argument_test: StaticWarning
 io/secure_socket_argument_test: StaticWarning
 io/stdout_bad_argument_test: StaticWarning
 package/package1_test: StaticWarning
@@ skipping 355 matching lines @@
 package/package_test: Fail # Unable to parse package files Flutter Issue 9115
 #unboxed_int_converter_test: Fail # Unable to parse package files Flutter Issue 9115
 io/process_run_output_test: Fail # Unable to parse package files Flutter Issue 9115
 
 io/dependency_graph_test: CompileTimeError # Imports dart:mirrors
 io/skipping_dart2js_compilations_test: CompileTimeError # Uses mirrors
 io/status_file_parser_test: CompileTimeError # Uses mirrors
 io/test_harness_analyzer_test: CompileTimeError # Uses mirrors
 io/test_runner_test: CompileTimeError # Uses mirrors
 status_expression_test: CompileTimeError # Uses mirrors