Remove sync_unit_tests from chromium_builder_dbg_tsan_mac to fix compilation on

the TSan bot

BUG=45207
TBR=akalin

Review URL: http://codereview.chromium.org/2309002

git-svn-id: http://src.chromium.org/svn/trunk/src/build@48378 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

all.gyp

@@ -191,7 +191,6 @@
             '../base/base.gyp:base_unittests',
             'temp_gyp/googleurl.gyp:googleurl_unittests',
             '../chrome/chrome.gyp:notifier_unit_tests',
-            '../chrome/chrome.gyp:sync_unit_tests',
             '../net/net.gyp:net_unittests',
             '../ipc/ipc.gyp:ipc_tests',
             '../media/media.gyp:media_unittests',