Remove WebSQL usage and/or method calls from this repository

[ccsmith13]

Web SQL is on its way out and is being slowly deprecated. Web SQL access in insecure contexts is deprecated as of Chromium 105 and a warning message is shown in the Chrome DevTools Issue panel. It's planned to fully remove it in later versions. Currently ydn-db still enables the feature, in src/ydn/db/conn/websql.js and in tests (https://github.com/search?q=repo%3Ayathit%2Fydn-db%20openDatabase&type=code).