Remove generators from advanced_playground

[Laurynas M]

Hey everyone, I have been working on a RISC-V language generator for a while now. It is made on the advanced_playground.html file because the tutorial suggested it: https://blocklycodelabs.dev/codelabs/custom-generator/index.html

I added my custom generator using   "playground.addGenerator('RISC V', codelabGenerator);"

How would I go about removing the other generators that are visible by default? Thank you! :)

[feni...@google.com]

Looks like this is just a missing feature--I just filed a feature request for it. It's open for contributions, so please consider contributing a patch. Changes in blockly samples are published weekly.

Cheers,

Rachel