Disable TEST_OLDER in .travis.yml for now.
Disable TEST_OLDER in .travis.yml for now.

It makes the build fail due to timeout.

/cc @ezyang

Heather/cabal,thomie/cabal,mydaum/cabal,sopvop/cabal,kolmodin/cabal,themoritz/cabal,sopvop/cabal,bennofs/cabal,bennofs/cabal,headprogrammingczar/cabal,sopvop/cabal,themoritz/cabal,thomie/cabal,themoritz/cabal,kolmodin/cabal,Heather/cabal,mydaum/cabal,headprogrammingczar/cabal