Remove spirit from llvm-testsuite known failures (unexpected pass).
Remove spirit from llvm-testsuite known failures (unexpected pass).

It is no longer timing out.  Previously it would take longer
than the 850 second timeout.  After rev 10408 it started to
only take ~215 seconds.

Rev 10408 is a CL which improved the performance of
UncontendedMutexLocks, and spirit uses locks:
https://codereview.chromium.org/11471019

See build: http://build.chromium.org/p/client.nacl.toolchain/builders/linux-pnacl-x86_64-tests-arm/builds/1005
vs http://build.chromium.org/p/client.nacl.toolchain/builders/linux-pnacl-x86_64-tests-arm/builds/1004

BUG= none red bot from unexpected pass

Review URL: https://codereview.chromium.org/11640027

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@10486 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client