Remove worker support of Web SQL Database.

LayoutTests/fast/workers/storage/resources/test-inputs-common.js

-function log(message)
-{
-    document.getElementById("console").innerHTML += message + "<br>";
-}
-
-function finishTest()
-{
-    if (window.testRunner)
-        testRunner.notifyDone();
-}
-
-function runTest(workerJSFile)
-{
-    if (!workerJSFile) {
-        log("FAIL: no JS file specified for the worker.");
-    }
-
-    if (window.testRunner) {
-        testRunner.dumpAsText();
-        testRunner.waitUntilDone();
-    }
-
-    var worker = new Worker(workerJSFile);
-    worker.onmessage = function(event) {
-        if (event.data == "done")
-            finishTest();
-        else
-            log(event.data);
-    }
-}