Disable Hydra builds for obsolete Haskell packages.
haskell-hindent: update to version 3.8

This package remains broken because it cannot deal with the current version of haskell-src-exts.
haskell-language-c-quote: update to version 0.10.1.3
haskell-monad-supply: update to version 0.6
haskell-vector: build the package with -msse2 on i686 platforms to fix test suite failures

https://github.com/haskell/vector/issues/47