[NFC][TSan][libdispatch] Don't use ignore_noninstrumented_modules on Linux

llvm-svn: 356728

compiler-rt/test/tsan/libdispatch/lit.local.cfg

@@ -8,9 +8,6 @@ root = getRoot(config)
 if 'libdispatch' not in root.available_features:
   config.unsupported = True
 
-# libdispatch is not yet compiled with TSan
-config.environment['TSAN_OPTIONS'] += ':ignore_noninstrumented_modules=1'
-
 for index, (template, replacement) in enumerate(config.substitutions):
   if template in ['%clang_tsan ', '%clangxx_tsan ']:
     config.substitutions[index] = (template, replacement + ' -fblocks ')