CppunitTest_sw_uiwriter: enable on Windows

I hope that the underlying problem is fixed now by commit
670100fc (Remove FastLoader
optimization, 2015-06-10).

Change-Id: I1cb577ec1f50a45b40683031e79c0999338a2926

sw/qa/extras/uiwriter/uiwriter.cxx

@@ -1056,7 +1056,7 @@ void SwUiWriterTest::testTdf90883TableBoxGetCoordinates()
 
 void SwUiWriterTest::testEmbeddedDataSource()
 {
-#if !defined(WNT) && !defined(MACOSX)
+#if !defined(MACOSX)
     // Initially no data source.
     uno::Reference<uno::XComponentContext> xComponentContext(comphelper::getProcessComponentContext());
     uno::Reference<sdb::XDatabaseContext> xDatabaseContext = sdb::DatabaseContext::create(xComponentContext);