[DevTools] Removed obsolete JSC regression tests

third_party/WebKit/LayoutTests/inspector/sources/debugger/debugger-activation-crash2.html

-<script src="../../../http/tests/inspector/inspector-test.js"></script>
-<script src="../../../http/tests/inspector/debugger-test.js"></script>
-
-<script>
-var closures = [];
-function makeClosure() {
-    var v1, v2, v3, v4, v5, v6, v7, v8, v9, v10; // Make a lot of potentially captured variables.
-    return function () { 
-        var x = v1; // But only capture one in optimizing compiles.
-        return x;
-    };
-}
-
-for (var i = 0; i < 100; ++i) {
-    closures.push(makeClosure());
-}
-
-closures[0](); // Force compilation.
-function testFunction() {
-    closures[0](); // Force recompilation.
-    
-    // At this point, closures[0] captured 1 variable but thinks it captured 10.
-    // If so, stopping at a breakpoint should make it crash.
-}
-
-function test() {
-    InspectorTest.startDebuggerTest(step1);
-
-    function step1()
-    {
-        InspectorTest.showScriptSource("debugger-activation-crash2.html", step2);
-    }
-
-    function step2(sourceFrame)
-    {
-        InspectorTest.addResult("Script source was shown.");
-        InspectorTest.setBreakpoint(sourceFrame, 8, "", true);
-        InspectorTest.runTestFunctionAndWaitUntilPaused(step3);
-    }
-
-    function step3(callFrames)
-    {
-        InspectorTest.captureStackTrace(callFrames, null, { dropLineNumbers: true });
-        InspectorTest.completeDebuggerTest();
-    }
-}
-
-window.onload = runTest;
-</script>
-
-<p>
-Tests for a crash when paused at a breakpoint caused by inaccurate Activation records.
-<a href="https://bugs.webkit.org/show_bug.cgi?id=57120">Bug 57120</a>
-</p>