haskell-HaTeX: enable hydra builds again

Changed files
-1
pkgs
development
-1
pkgs/development/haskell-modules/configuration-hackage2nix.yaml
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hatex-guide: [ i686-linux, x86_64-linux, x86_64-darwin ]
HaTeX-meta: [ i686-linux, x86_64-linux, x86_64-darwin ]
HaTeX-qq: [ i686-linux, x86_64-linux, x86_64-darwin ]
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HaTeX: [ i686-linux, x86_64-linux, x86_64-darwin ]
hats: [ i686-linux, x86_64-linux, x86_64-darwin ]
hatt: [ i686-linux, x86_64-linux, x86_64-darwin ]
haven: [ i686-linux, x86_64-linux, x86_64-darwin ]