Remove TSan suppression that has been fixed by moving plugin dlopen()ing out-of-process.

BUG=93757
TEST=TSan

Review URL: http://codereview.chromium.org/8558026

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@110918 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/tsan/suppressions.txt

@@ -513,25 +513,6 @@
   fun:ThreadWatcherList::StartWatching
   fun:ThreadWatcherList::InitializeAndStartWatching
 }
-{
-  bug_93757_a
-  ThreadSanitizer:Race
-  fun:__memset_sse2
-  fun:VisitedLinkMaster::CreateURLTable
-}
-{
-  bug_93757_b
-  ThreadSanitizer:Race
-  ...
-  fun:webkit::npapi::PluginLib::ReadWebPluginInfo
-  fun:webkit::npapi::PluginList::ReadPluginInfo
-  fun:webkit::npapi::PluginList::LoadPlugin
-  fun:webkit::npapi::PluginList::LoadPluginsFromDir
-  fun:webkit::npapi::PluginList::LoadPluginsInternal
-  fun:webkit::npapi::PluginList::LoadPlugins
-  fun:webkit::npapi::PluginList::GetPlugins
-  fun:PluginService::GetPluginsInternal
-}
 {
   bug_93932_a
   ThreadSanitizer:Race