Remove dart2dart support from testing scripts and status files

tests/isolate/isolate.status

Index: tests/isolate/isolate.status
diff --git a/tests/isolate/isolate.status b/tests/isolate/isolate.status
index 02e3fa653cc2e42f35092c2a0939f0297733f835..d5f669cc8db0087e3e248438e5167802785e8608 100644
--- a/tests/isolate/isolate.status
+++ b/tests/isolate/isolate.status
@@ -9,7 +9,7 @@ isolate_stress_test: Fail # Issue 12588: This should be able to pass when we hav
 [ $runtime == vm && $arch == mips && $mode == debug ]
 mandel_isolate_test: Skip # Uses 600 MB Ram on our 1 GB test device.
 
-[ $compiler == none || $compiler == dart2dart ]
+[ $compiler == none ]
 compile_time_error_test/01: Skip # Issue 12587
 ping_test: Skip           # Resolve test issues
 ping_pause_test: Skip     # Resolve test issues
@@ -59,17 +59,6 @@ isolate_stress_test: Pass, Slow # TODO(kasperl): Please triage.
 
 mandel_isolate_test: Pass, Timeout # TODO(kasperl): Please triage.
 
-[ $compiler == dart2dart ]
-illegal_msg_mirror_test: RuntimeError    # Issue 16548
-spawn_uri_multi_test/none: RuntimeError  # Issue 16549
-spawn_uri_nested_vm_test: RuntimeError   # Issue 16549
-spawn_uri_test: RuntimeError             # Issue 16549
-spawn_uri_vm_test: RuntimeError          # Issue 16549
-spawn_uri_exported_main_test: RuntimeError # Issue 16549
-issue_21398_parent_isolate_test: RuntimeError  # Issue 16549
-issue_21398_parent_isolate1_test: RuntimeError # Issue 16549
-issue_21398_parent_isolate2_test: Skip # Not implemented yet
-
 [ $compiler == dart2js && ( $runtime == ff || $runtime == safari || $runtime == drt || $runtime == chrome || $runtime == chromeOnAndroid) ]
 isolate_stress_test: Pass, Slow # Issue 10697
 
@@ -82,7 +71,7 @@ spawn_uri_nested_vm_test: Skip # Issue 14463
 [ $jscl ]
 spawn_uri_multi_test/none: RuntimeError # Issue 13544
 
-[ ($compiler == none || $compiler == dart2dart) && ($runtime == dartium || $runtime == drt || $runtime == ContentShellOnAndroid) ]
+[ $compiler == none && ($runtime == dartium || $runtime == drt || $runtime == ContentShellOnAndroid) ]
 pause_test: Fail         # Not implemented yet
 
 [ $compiler == none && $runtime == ContentShellOnAndroid ]