refactoring: removed unused variable

git-svn-id: https://cobra.cs.uni-duesseldorf.de/prob/trunk/experimental/plagge/probkodkod@12351 7aec93f6-bc54-0410-ac70-7d7c9efa889a

src/de/stups/probkodkod/types/TupleType.java

@@ -41,12 +41,10 @@ public class TupleType {
 
 		final List<Integer> lower = new ArrayList<Integer>(arity);
 		final List<Integer> upper = new ArrayList<Integer>(arity);
-		int i = 0;
 		for (final Type type : types) {
 			final IntegerIntervall atomRange = type.getInterval();
 			lower.add(atomRange.getLower());
 			upper.add(atomRange.getUpper());
-			i++;
 		}
 		this.lower = Collections.unmodifiableList(lower);
 		this.upper = Collections.unmodifiableList(upper);