Remove a few more ArrayList initial capacities

If anything, it seems to be *faster* with the default initial
capacities, but the difference is not very significant.

src/main/java/org/sablecc/sablecc/Grammar.java

@@ -585,7 +585,7 @@ public final class Grammar
 
           if(!symbol.terminal)
           {
-            List<Symbol> tailVector = new ArrayList<>(0);
+            List<Symbol> tailVector = new ArrayList<>();
 
             for(int k = items[i].lr0Item.position + 1; k < rightside.length; k++)
             {

src/main/java/org/sablecc/sablecc/LR0Collection.java

@@ -14,10 +14,10 @@ import java.util.TreeMap;
 
 final class LR0Collection
 {
-  private final List<LR0ItemSet> sets = new ArrayList<>(0);
+  private final List<LR0ItemSet> sets = new ArrayList<>();
   private final Map<LR0ItemSet, Integer> setIndices = new TreeMap<>();
-  private final List<Map<Symbol, Integer>> GOTO = new ArrayList<>(0);
-  final List<String> names = new ArrayList<>(0);
+  private final List<Map<Symbol, Integer>> GOTO = new ArrayList<>();
+  final List<String> names = new ArrayList<>();
 
   LR0Collection(LR0ItemSet set
                  )

src/main/java/org/sablecc/sablecc/Production.java

@@ -96,7 +96,7 @@ final class Production
 
     if(result == null)
     {
-      List<Production> alternatives = new ArrayList<>(0);
+      List<Production> alternatives = new ArrayList<>();
 
       for(Production production : productions)
       {