KJS: remove unnecessary test runners (mostly for stdlib)

Stdlib tests run separately via gradle.

js/js.translator/testData/jsTester/jsTester.js

@@ -1,52 +0,0 @@
-/*
- * Copyright 2010-2013 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-/*Asserter*/
-
-var JsTests = (function () {
-    var reporter = jsTestReporter;
-    var failedTest = {};
-
-    var assert = function (isTrue, message) {
-        if (!isTrue) {
-            fail(message);
-        }
-    };
-
-    var fail = function (message) {
-        reporter.reportError(message);
-        throw failedTest;
-    };
-
-    var test = function (testName, testFun) {
-        reporter.testStart(testName);
-        try {
-            testFun();
-        }
-        catch (fail) {
-            if (fail != failedTest) {
-                reporter.reportError("Unexpected exception " + fail + "\n" + fail.stack);
-            }
-            reporter.testFail(testName);
-            return;
-        }
-        reporter.testSuccess(testName);
-    };
-    return {
-        test: test,
-        assert: assert,
-        fail: fail
-    }
-})();

js/js.translator/testData/jsTester/jsTester.kt

@@ -1,13 +0,0 @@
-package kotlin.test
-
-val init = run {
-    _asserter = JsTestsAsserter()
-}
-
-public class JsTestsAsserter() : Asserter {
-    public override fun fail(message: String?): Nothing = failWithMessage(message)
-}
-
-public inline fun assert(value: Boolean, message: String?): Unit = js("JsTests").assert(value, message)
-
-private inline fun failWithMessage(message: String?): Nothing = js("JsTests").fail(message)