[GR-26317] Revert adding hashWithState message to PInt.

PullRequest: graalpython/1300

Author: steve-s

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/ints/PInt.java

@@ -568,11 +568,6 @@ public long hash() {
         return hashBigInteger(value);
     }
 
-    @ExportMessage
-    public long hashWithState(@SuppressWarnings("unused") ThreadState state) {
-        return hash();
-    }
-
     @TruffleBoundary
     public static long hashBigInteger(BigInteger i) {
         long h = i.remainder(BigInteger.valueOf(SysModuleBuiltins.HASH_MODULUS)).longValue();