Applies a filter to the list of style nodes that comes from WP_Theme_JSON::get_style_nodes().

This particular filter removes all of the blocks from the array.

We want WP_Theme_JSON to be ignorant of the implementation details of how the CSS is being used.
This filter allows us to modify the output of WP_Theme_JSON depending on whether or not we are
loading separate assets, without making the class aware of that detail.

function wp_filter_out_block_nodes( $nodes ) {
	return array_filter(
		$nodes,
		function( $node ) {
			return ! in_array( 'blocks', $node['path'], true );
		},
		ARRAY_FILTER_USE_BOTH
	);
}