haskell-pandoc: drop obsolete override

pkgs/development/haskell-modules/configuration-common.nix

···
   # https://github.com/junjihashimoto/test-sandbox-compose/issues/2
   test-sandbox-compose = dontCheck super.test-sandbox-compose;
 
-  # https://github.com/jgm/pandoc/issues/2190
-  pandoc = overrideCabal super.pandoc (drv: {
-    enableSharedExecutables = false;
-    postInstall = ''            # install man pages
-      mv man $out/
-      find $out/man -type f ! -name "*.[0-9]" -exec rm {} +
-    '';
-  });
+  # https://github.com/jgm/pandoc/issues/2709
+  pandoc = disableSharedExecutables super.pandoc;
 
   # Tests attempt to use NPM to install from the network into
   # /homeless-shelter. Disabled.