Remove perf tests that are moved to another location.

test/perf-test/Collections/weakmap.js

-// Copyright 2014 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.
-
-
-var MapBenchmark = new BenchmarkSuite('WeakMap', [1000], [
-  new Benchmark('Set', false, false, 0, WeakMapSet),
-  new Benchmark('Has', false, false, 0, WeakMapHas, WeakMapSetup,
-      WeakMapTearDown),
-  new Benchmark('Get', false, false, 0, WeakMapGet, WeakMapSetup,
-      WeakMapTearDown),
-  new Benchmark('Delete', false, false, 0, WeakMapDelete, WeakMapSetup,
-      WeakMapTearDown),
-]);
-
-
-var wm;
-var N = 10;
-var keys = [];
-
-
-for (var i = 0; i < N * 2; i++) {
-  keys[i] = {};
-}
-
-
-function WeakMapSetup() {
-  wm = new WeakMap;
-  for (var i = 0; i < N; i++) {
-    wm.set(keys[i], i);
-  }
-}
-
-
-function WeakMapTearDown() {
-  wm = null;
-}
-
-
-function WeakMapSet() {
-  WeakMapSetup();
-  WeakMapTearDown();
-}
-
-
-function WeakMapHas() {
-  for (var i = 0; i < N; i++) {
-    if (!wm.has(keys[i])) {
-      throw new Error();
-    }
-  }
-  for (var i = N; i < 2 * N; i++) {
-    if (wm.has(keys[i])) {
-      throw new Error();
-    }
-  }
-}
-
-
-function WeakMapGet() {
-  for (var i = 0; i < N; i++) {
-    if (wm.get(keys[i]) !== i) {
-      throw new Error();
-    }
-  }
-  for (var i = N; i < 2 * N; i++) {
-    if (wm.get(keys[i]) !== undefined) {
-      throw new Error();
-    }
-  }
-}
-
-
-function WeakMapDelete() {
-  // This is run more than once per setup so we will end up deleting items
-  // more than once. Therefore, we do not the return value of delete.
-  for (var i = 0; i < N; i++) {
-    wm.delete(keys[i]);
-  }
-}