Revert "Add support for V8 and Firefox stack traces in pkg/stack_trace."

pkg/pkg.status

Index: pkg/pkg.status
diff --git a/pkg/pkg.status b/pkg/pkg.status
index 38f6624faf9a4ccf1663b2ac154ff2f62e1a706c..2deea0e5ed6fe9604c9e49fb45631c44b2ee5e52 100644
--- a/pkg/pkg.status
+++ b/pkg/pkg.status
@@ -57,7 +57,6 @@ crypto/test/sha1_test: Fail # Issue 11407.
 [ $runtime == vm ]
 pathos/test/pathos_dartium_test: Fail, OK # Uses dart:html
 pathos/test/pathos_dart2js_test: Fail, OK # Uses dart:html
-stack_trace/test/dartium_test: Fail, OK # Dartium-specific traces
 intl/test/find_default_locale_browser_test: Skip
 intl/test/date_time_format_http_request_test: Skip
 
@@ -107,7 +106,6 @@ crypto/test/sha1_test: Fail # V8 bug: https://code.google.com/p/v8/issues/detail
 
 [ $compiler == dart2js && $browser ]
 pathos/test/pathos_dartium_test: Fail # Issue 6490
-stack_trace/test/dartium_test: Fail, OK # Dartium-specific traces
 crypto/test/sha256_test: Slow, Pass
 crypto/test/sha1_test: Slow, Pass
 
@@ -135,7 +133,6 @@ oauth2/test/client_test: Fail, OK # Uses dart:io.
 oauth2/test/credentials_test: Fail, OK # Uses dart:io.
 oauth2/test/handle_access_token_response_test: Fail, OK # Uses dart:io.
 pathos/test/pathos_io_test: Fail, OK # Uses dart:io.
-stack_trace/test/vm_test: Fail, OK # VM-specific method names.
 
 scheduled_test/test/descriptor/async_test: Fail # http://dartbug.com/8440
 scheduled_test/test/descriptor/directory_test: Fail # http://dartbug.com/8440
@@ -160,6 +157,9 @@ scheduled_test/test/scheduled_test/timeout_test: Fail # http://dartbug.com/8440
 scheduled_test/test/scheduled_test/wrap_async_test: Fail # http://dartbug.com/8440
 scheduled_test/test/scheduled_test/wrap_future_test: Fail # http://dartbug.com/8440
 
+stack_trace/test/frame_test: Fail # http://dartbug.com/6943
+stack_trace/test/trace_test: Fail # http://dartbug.com/6943
+
 
 [ $runtime == safari]
  # Bug in JSC: the test only passes when being debugged.