unused files

applications/utilities/mesh/generation/extrudeMesh/setRoots.H

-    argList::validArgs.clear();
-    argList::noParallel();
-
-    argList::validOptions.insert("sourceCase", "source case");
-    argList::validOptions.insert("sourcePatch", "source patch");
-
-    argList::validOptions.insert("surface", "surface file");
-
-    argList::validOptions.insert("mergeFaces", "");
-
-    argList args(argc, argv);
-
-    if (!args.check())
-    {
-         FatalError.exit();
-    }