Delete obsolete Haskell packages:

* comonad 1.1.1.6
 * comonad-transformers 2.1.2
 * semigroupoids 1.3.4
 * split 0.1
 * tagsoup 0.10.1
 * texmath 0.4

pkgs/development/libraries/haskell/semigroupoids/1.3.4.nix

@@ -1,14 +0,0 @@
-{ cabal, comonad, contravariant, semigroups, transformers }:
-
-cabal.mkDerivation (self: {
-  pname = "semigroupoids";
-  version = "1.3.4";
-  sha256 = "0vnipjndbsldk5w1qw35i2zrd418rq13y10g0i33ylg1gwnsrqph";
-  buildDepends = [ comonad contravariant semigroups transformers ];
-  meta = {
-    homepage = "http://github.com/ekmett/semigroupoids";
-    description = "Haskell 98 semigroupoids: Category sans id";
-    license = self.stdenv.lib.licenses.bsd3;
-    platforms = self.ghc.meta.platforms;
-  };
-})