[test] Remove obsolete mjsunit/call-counts test.

test/mjsunit/call-counts.js

-// Copyright 2015 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Flags: --allow-natives-syntax --noalways-opt
-
-// We disable vector store ICs because slot indices change when this option
-// is enabled.
-
-// Locations in the type feedback vector where call counts are maintained for
-// the two calls made from bar();
-
-(function() {
-  const kFooCallExtraIndex = 5;
-  const kArrayCallExtraIndex = 7;
-
-  function GetCallCount(func, slot) {
-    var vector = %GetTypeFeedbackVector(func);
-    // Call counts are recorded doubled.
-    var value = %FixedArrayGet(vector, slot);
-    return Math.floor(value / 2);
-  }
-
-  function foo(a) { return a[3] * 16; }
-
-  function bar(a) {
-    var result = 0;
-    for (var i = 0; i < 10; i++) {
-      result = foo(a);
-      if (i % 2 === 0) {
-        var r = Array();
-        r[0] = 1;
-        result += r[0];
-      }
-    }
-    return result;
-  }
-
-  var a = [1, 2, 3];
-  bar(a);
-  assertEquals(10, GetCallCount(bar, kFooCallExtraIndex));
-  assertEquals(5, GetCallCount(bar, kArrayCallExtraIndex));
-
-  %OptimizeFunctionOnNextCall(bar);
-  bar(a);
-})();