[feedback wanted] Removing the webworker code from sql.js

I feel like today, providing a custom, limited webworker API, based on message-passing instead of promises is not the best choice, and is not useful to many. On the contrary, it creates confusion to have so many different assets available for download. When needed, it is very easy to turn the main library code into a web worker, in an automated way, without loosing any of the original API, using libraries like comlink.

What I propose :

• remove the worker-specific code from the main sql.js repository
• add a note in the readme about how to run the code in a web worker
• if someone can commit to maintaining the old WebWorker code (@kaizhu256 ?) : create a second repository in the sql-js organization, containing the webworker, publishing separate release assets. The repository could use continuous integration to automatically build assets without duplicating any code from the main sql.js repository. I can create the initial setup for the repository if someone is willing to maintain it in the long term.

Review the worker-specific code and README in the sql.js repository first. Confirm the scope of removing the worker assets and documenting a Comlink-based alternative, then resolve the unanswered maintenance and separate-repository questions before considering the work done.