[gardening] Remove flaky markers and close issues for tests not appearing in flakiness dashboard

Closes #28374
Closes #28502
Closes #29012
Closes #29111
Closes #29136
Closes #29324
Closes #29465
Closes #29524
Closes #33716
Closes #35012
Closes #35092

Change-Id: Ifa7a34646efadd92a86b4ae62c828e6adcec2c3a
Reviewed-on: https://dart-review.googlesource.com/c/92288
Commit-Queue: Martin Kustermann <[email protected]>
Reviewed-by: Martin Kustermann <[email protected]>

Author: mkustermann

tests/standalone_2/standalone_2_kernel.status

@@ -151,8 +151,6 @@ io/web_socket_ping_test: Crash, Pass
 
 [ $runtime == vm && $strong && ($compiler == dartk || $compiler == dartkb) ]
 io/http_client_request_test: Pass, Timeout
-io/platform_resolved_executable_test/03: Pass, RuntimeError
-io/platform_resolved_executable_test/04: Pass, RuntimeError
 io/secure_builtin_roots_test: Pass, Timeout
 io/socket_finalizer_test: Pass, Timeout
 no_support_debugger_test: Skip # kernel-service snapshot not compatible with flag disabled

tests/standalone_2/standalone_2_vm.status

@@ -67,9 +67,6 @@ verbose_gc_to_bmu_test: Skip
 [ $arch == arm && $mode == release && $runtime == dart_precompiled && $system == android ]
 io/stdout_stderr_non_blocking_test: Pass, Timeout # Issue 28426
 
-[ $arch == ia32 && $builder_tag == asan && $mode == release && $runtime == vm && $system == linux ]
-io/socket_close_test: Pass, Timeout # Issue 28502: timeout.
-
 [ $arch == simdbc64 && $mode == debug && $checked ]
 io/web_socket_test: Pass, RuntimeError # Issue 26814.
 
@@ -88,7 +85,6 @@ io/named_pipe_script_test: Pass, RuntimeError # Issue 28737
 
 [ $mode == release && $runtime == vm && $system == windows ]
 io/http_server_close_response_after_error_test: Pass, Timeout # Issue 28370: timeout.
-io/regress_7191_test: Pass, Timeout # Issue 28374: timeout.
 
 [ $runtime == dart_precompiled && $system == linux && ($arch == simarm || $arch == simarm64 || $arch == x64) ]
 io/stdout_stderr_non_blocking_test: Pass, Timeout # Issue 35192