Fixed tsan warnings in remoting_unittests

tools/valgrind/tsan/suppressions_win32.txt

 ############################
 # Chromium
 
 {
   bug_25385 (2)
   ThreadSanitizer:Race
   ...
   fun:*base*Thread*~*
 }
 
 {
   Benign race durung InitializeClock
   ThreadSanitizer:Race
   ...
   fun:*InitializeClock*
 }
 
-{
-  bug_53837
-  ThreadSanitizer:Race
-  fun:*talk_base*MessageQueueManager*Clear*
-  fun:*talk_base*~MessageHandler*
-  fun:*remoting*JingleThread*Run*
-}
-
 ############################
 # Reports on the guts of Windows
 {
   UuidCreate
   ThreadSanitizer:Race
   ...
   fun:UuidCreate
 }
 
 {
@@ skipping 22 matching lines @@
   fun:CoFreeAllLibraries
 }
 {
   accessing an invalid lock under exit/doexit
   ThreadSanitizer:InvalidLock
   fun:*~Lock*
   ...
   fun:doexit
   fun:exit
 }