remove function travis() from shellHooks

Author: chessai

shell.nix

@@ -20,13 +20,6 @@ in
         cabal v1-configure --enable-tests && \
           cabal v1-build test && dist/build/test/test
       }
-      function travis () {
-        cabal v1-configure --enable-tests \
-          -f+disable-default-paths \
-          --extra-lib-dirs=/opt/arrayfire/lib64 \
-          --extra-include-dirs=/opt/arrayfire/include && \
-        cabal v1-build test && dist/build/test/test
-      }
       function doctest-runner () {
          ${pkgs.ag}/bin/ag -l | \
            ${pkgs.entr}/bin/entr sh -c \