Remove apparently unused ignoredTokens field from parser.txt template

This field seems to store all ignored tokens encountered during parsing.
It's not clear what this field is meant to do - we don't use it for
anything, and neither does SableCC itself apparently. Removing it
doesn't seem to break anything and should improve memory usage during
parsing a bit.

src/main/resources/org/sablecc/sablecc/parser.txt

@@ -24,8 +24,6 @@ import java.io.IOException;
 @SuppressWarnings({"rawtypes","unchecked","unused"})
 public class Parser implements IParser
 {
-    public final Analysis ignoredTokens = new AnalysisAdapter();
-
     protected ArrayList nodeList;
 
     private final Lexer lexer;
@@ -289,23 +287,11 @@ Macro:ParserCommon
     	this.getMapping().clear();
     
         push(0, null$0$);
-        List<Node> ign = null;
         while(true)
         {
             while(index(this.lexer.peek()) == -1)
             {
-                if(ign == null)
-                {
-                    ign = new LinkedList<Node>();
-                }
-
-                ign.add(this.lexer.next());
-            }
-
-            if(ign != null)
-            {
-                this.ignoredTokens.setIn(this.lexer.peek(), ign);
-                ign = null;
+                this.lexer.next();
             }
 
             this.last_pos = this.lexer.peek().getPos();