Removing the byline from a bbPress install

I have the latest bbPress installed on a Genesis child theme. I want to remove the byline ([date] By [author]) on all forum pages. I also have Genesis Simple Edits installed, and it will remove the byline on both blog posts and forum pages, but I need the byline on blog posts. I've tried the following in functions.php:

add_action( ‘genesis_entry_header’, ‘bbpress_remove_post_info’ );
function bbpress_remove_post_info() {
if (is_bbpress() : ) {
remove_action( 'genesis_before_post_content', 'genesis_post_info' );
remove_action( 'genesis_entry_header', 'genesis_post_info', 12 );
remove_action( 'genesis_entry_header', 'genesis_entry_header_markup_open', 5 );
remove_action( 'genesis_entry_header', 'genesis_entry_header_markup_close', 15 );

I've tried the following in the theme's css file:

#bbpress-forums .entry-meta .byline {
display: none;

But none of that works. Any guidance on what I'm doing wrong? I'm pulling my hair out. TIA.