Nixpkgs.Haskell.FromCabal.Name: drop mapping for IL

As part of dropping it from Nixpkgs.

Author: emilazy

cabal2nix/src/Distribution/Nixpkgs/Haskell/FromCabal/Name.hs

@@ -104,7 +104,6 @@ libNixName "icui18n"                            = return "icu"
 libNixName "icuio"                              = return "icu"
 libNixName "icuuc"                              = return "icu"
 libNixName "idn"                                = return "libidn"
-libNixName "IL"                                 = return "libdevil"
 libNixName "ImageMagick"                        = return "imagemagick"
 libNixName "Imlib2"                             = return "imlib2"
 libNixName "iw"                                 = return "wirelesstools"