Remove obsolete method 'PTuple.compareTo'.

Author: fangerer

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/tuple/PTuple.java

@@ -27,15 +27,13 @@
 
 import com.oracle.graal.python.builtins.objects.type.PythonClass;
 import com.oracle.graal.python.runtime.sequence.PImmutableSequence;
-import com.oracle.graal.python.runtime.sequence.PSequence;
-import com.oracle.graal.python.runtime.sequence.SequenceUtil;
 import com.oracle.graal.python.runtime.sequence.storage.ObjectSequenceStorage;
 import com.oracle.graal.python.runtime.sequence.storage.SequenceStorage;
 import com.oracle.truffle.api.CompilerAsserts;
 import com.oracle.truffle.api.CompilerDirectives;
 import com.oracle.truffle.api.nodes.UnexpectedResultException;
 
-public final class PTuple extends PImmutableSequence implements Comparable<Object> {
+public final class PTuple extends PImmutableSequence {
 
     private SequenceStorage store;
 
@@ -102,11 +100,6 @@ public void setSequenceStorage(SequenceStorage store) {
         this.store = store;
     }
 
-    @Override
-    public int compareTo(Object o) {
-        return SequenceUtil.cmp(this, (PSequence) o);
-    }
-
     @Override
     public boolean equals(Object other) {
         CompilerAsserts.neverPartOfCompilation();

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/sequence/SequenceUtil.java

@@ -91,29 +91,6 @@ public static final int sliceLength(int start, int stop, long step) {
         return ret;
     }
 
-    /*
-     * Compare the specified object/length pairs.
-     *
-     * @return value >= 0 is the index where the sequences differs. -1: reached the end of sequence1
-     * without a difference -2: reached the end of both sequences without a difference -3: reached
-     * the end of sequence2 without a difference
-     */
-    public static int cmp(PSequence sequence1, PSequence sequence2) {
-        throw new UnsupportedOperationException();
-// int length1 = sequence1.len();
-// int length2 = sequence2.len();
-//
-// for (int i = 0; i < length1 && i < length2; i++) {
-// if (!sequence1.getItem(i).equals(sequence2.getItem(i))) {
-// return i;
-// }
-// }
-// if (length1 == length2) {
-// return -2;
-// }
-// return length1 < length2 ? -1 : -3;
-    }
-
     public static int normalizeIndex(int index, int length, String outOfBoundsMessage) {
         int normalized = normalizeIndexUnchecked(index, length);
         if (normalized < 0 || normalized >= length) {