Remove worker support of Web SQL Database.

Source/core/workers/WorkerThread.cpp

Index: Source/core/workers/WorkerThread.cpp
diff --git a/Source/core/workers/WorkerThread.cpp b/Source/core/workers/WorkerThread.cpp
index 988256e367b9a256b1245ff2fdac409fb9aa786d..d21a6c6c4d4d062793166c9034f88de64471dd07 100644
--- a/Source/core/workers/WorkerThread.cpp
+++ b/Source/core/workers/WorkerThread.cpp
@@ -403,7 +403,6 @@ void WorkerThread::stopInternal()
 
     // Ensure that tasks are being handled by thread event loop. If script execution weren't forbidden, a while(1) loop in JS could keep the thread alive forever.
     m_workerGlobalScope->script()->scheduleExecutionTermination();
-    m_workerGlobalScope->wasRequestedToTerminate();
     InspectorInstrumentation::didKillAllExecutionContextTasks(m_workerGlobalScope.get());
     m_debuggerMessageQueue.kill();
     postTask(WorkerThreadShutdownStartTask::create());