Remove DCHECK that tickles TLS during shutdown

Repair busted tree.

TBR=rtenneti
Review URL: http://codereview.chromium.org/8425013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@107940 0039d316-1c4b-4281-b951-d872f2087c98

base/tracked_objects.cc

@@ -207,7 +207,6 @@ void ThreadData::OnThreadTermination(void* thread_data) {
   if (!thread_data)
     return;
   reinterpret_cast<ThreadData*>(thread_data)->OnThreadTerminationCleanup();
-  DCHECK_EQ(tls_index_.Get(), reinterpret_cast<ThreadData*>(NULL));
 }
 
 void ThreadData::OnThreadTerminationCleanup() const {