removed toNavigation

src/main/java/org/jastadd/preprocessor/Main.java

@@ -88,7 +88,7 @@ public class Main extends org.jastadd.relast.compiler.RelAstProcessor {
         }
     }
 
-
+    /*
     Document navigation = program.toNavigation(useExceptions, useOptionals, exceptionName);
 
     Path yamlFile = outputBasePath.resolve(navigation.getFileName());
@@ -103,7 +103,7 @@ public class Main extends org.jastadd.relast.compiler.RelAstProcessor {
     } catch (IOException e) {
       throw new CompilerException("Unable to expand template", e);
     }
-
+    */
 
     for (GrammarFile grammarFile : program.getGrammarFileList()) {
       printMessage("Writing output file " + grammarFile.getFileName());