haskell-threads: disable 'doCheck' to avoid test suite build errors

Setup: At least the following dependencies are missing:
test-framework >=0.2.4 && <0.7,
test-framework-hunit >=0.2.4 && <0.3
haskell-happstack-server: disable 'doCheck' to avoid test suite build errors

tests/Test.hs:3:8:
    Could not find module `Happstack.Server.Tests'
    Perhaps you meant
      Happstack.Server.Types (from happstack-server-7.1.6)
      Happstack.Server.Auth (from happstack-server-7.1.6)
      Happstack.Server.Client (from happstack-server-7.1.6)
    Use -v to see a list of the files searched for.