Remove worker support of Web SQL Database.

LayoutTests/fast/workers/storage/resources/empty-statement-sync.js

Index: LayoutTests/fast/workers/storage/resources/empty-statement-sync.js
diff --git a/LayoutTests/fast/workers/storage/resources/empty-statement-sync.js b/LayoutTests/fast/workers/storage/resources/empty-statement-sync.js
deleted file mode 100644
index 0f45e34470d80285e16407237f6275d7a6a0252b..0000000000000000000000000000000000000000
--- a/LayoutTests/fast/workers/storage/resources/empty-statement-sync.js
+++ /dev/null
@@ -1,12 +0,0 @@
-try {
-    var db = openDatabaseSync("EmptyStatementSync", "1.0", "Test an empty statement.", 1);
-    db.transaction(function(tx) {
-        var result = tx.executeSql("");
-        postMessage(result ? "FAIL: result is not null" : "PASS: result is null");
-    });
-    postMessage("PASS");
-} catch (err) {
-    postMessage("FAIL");
-}
-
-postMessage("done");