Speculatively remove TrayAccessibilityTest suppression.

See if this still happens.

Bug: 355641
Change-Id: Idfb2ed96049e7806e54867d253e9f6d43284304d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1512492
Commit-Queue: David Benjamin <davidben@chromium.org>
Auto-Submit: David Benjamin <davidben@chromium.org>
Reviewed-by: Alexander Potapenko <glider@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#644298}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 9aded53d324ed7189488a10ca87f69060b999c08

sanitizers/lsan_suppressions.cc

@@ -75,9 +75,6 @@ char kLSanDefaultSuppressions[] =
     "leak:ppapi::proxy::PPP_Instance_Private_ProxyTest_PPPInstancePrivate_"
     "Test\n"
 
-    // http://crbug.com/355641
-    "leak:TrayAccessibilityTest\n"
-
     // http://crbug.com/356306
     "leak:service_manager::SetProcessTitleFromCommandLine\n"