Bug 1600594 - Remove supression for seemingly fixed issue. r=decoder

Differential Revision: https://phabricator.services.mozilla.com/D94493

mozglue/build/TsanOptions.cpp

@@ -224,9 +224,6 @@ extern "C" const char* __tsan_default_suppressions() {
          // Bug 1506910
          "race:gMozillaPoisonValue\n"
 
-         // Bug 1600594
-         "race:nsThread::SizeOfEventQueues\n"
-
          // Bug 1601286
          "race:setFlagBit\n"
          "race:isFatInline\n"