Remove test for packages with ':' in the name.

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.
 
 package/invalid_uri_test: Fail, OK # CompileTimeErrors intentionally
@@ skipping 159 matching lines @@
 package/scenarios/invalid/non_existent_packages_file_test: Crash # Issue 24123
 package/scenarios/invalid/invalid_utf8_test: Crash # Issue 24127
 package/scenarios/invalid/invalid_package_name_test: Crash # Issue 24125
 package/scenarios/invalid/same_package_twice_test: Crash # Issue 24124
 package/scenarios/packages_file_strange_formatting/empty_package_dir_test: Crash # Issue 24126
 
 [ $system == windows ]
 io/skipping_dart2js_compilations_test: Fail # Issue 19551.
 verbose_gc_to_bmu_test: Skip
 io/platform_resolved_executable_test/06: RuntimeError  # Issue 23641
-package/scenarios/packages_file_strange_formatting/target_with_colon_test: SkipByDesign # Windows does not allow colons in paths
 
 [ $arch != ia32 && $arch != x64 && $arch != simarm && $arch != simarmv5te && $mode == debug ]
 verified_mem_test: Skip  # Not yet implemented.
 
 [ $runtime == vm && $mode == debug && $builder_tag == asan ]
 full_coverage_test: Skip  # Timeout.
 io/file_lock_test: Skip  # Timeout.
 io/test_runner_test: Skip  # Timeout.
 io/http_client_stays_alive_test: Skip  # Timeout.
 
 [ $compiler == dart2js && $cps_ir ]
 coverage_test: Crash # (static Iterable<Str...  cannot handle sync*/async* functions
 io/addlatexhash_test: Crash # (static Iterable<Str...  cannot handle sync*/async* functions
 io/file_error_test: Crash # (static Iterable<Str...  cannot handle sync*/async* functions
 io/file_read_encoded_test: Crash # (static Iterable<Str...  cannot handle sync*/async* functions
 io/file_test: Crash # (static Iterable<Str...  cannot handle sync*/async* functions
 io/http_client_connect_test: Crash # (static Iterable<Str...  cannot handle sync*/async* functions
 io/observatory_test: Crash # (static Iterable<Str...  cannot handle sync*/async* functions
 io/skipping_dart2js_compilations_test: Crash # (static Iterable<Str...  cannot handle sync*/async* functions
 priority_queue_stress_test: RuntimeError # Cannot read property 'any$1' of undefined