Disable Gutenberg Embed Block Variations

disable-variations.js

const { getBlockVariations, unregisterBlockVariation } = wp.blocks;

wp.domReady(() => {
	const allowedEmbedBlocks = ['vimeo', 'youtube'];

	getBlockVariations('core/embed').forEach(function (blockVariation) {
		if (allowedEmbedBlocks.indexOf(blockVariation.name) === -1) {
			unregisterBlockVariation('core/embed', blockVariation.name);
		}
	});
});