Remove panels and sections from customizer

Hello,

I use my child theme to remove some panels and sections from customizer.

This worked in 3.4.37 version:

function abcdefg_customizer( $wp_customize ) {
	$wp_customize->remove_panel( 'tc-footer-panel' );
	$wp_customize->remove_panel( 'tc-advanced-panel');
	$wp_customize->remove_panel( 'tc-sidebars-panel');
	$wp_customize->remove_panel( 'tc-global-panel');
	$wp_customize->remove_panel( 'tc-header-panel');
		
	$wp_customize->remove_section('go_pro_sec');
	$wp_customize->remove_section('themes');
	$wp_customize->remove_section('frontpage_sec');
	$wp_customize->remove_section('post_layout_sec');
	$wp_customize->remove_section('post_lists_sec');
	$wp_customize->remove_section('single_posts_sec');
	$wp_customize->remove_section('breadcrumb_sec');
	$wp_customize->remove_section('post_metas_sec');
	$wp_customize->remove_section('galleries_sec');
	$wp_customize->remove_section('paragraphs_sec');
	$wp_customize->remove_section('comments_sec');
	$wp_customize->remove_section('post_navigation_sec');
}
add_action( 'customize_register', 'abdefg_customizer', 1000 );

remove_section() works even now in 4.0.13 version, but only for go_pro_sec, the themes section is still there.

remove_panel() doesn’t work at all, it throws js error in console and the customizer wont load at all.

This is the JS error: Uncaught TypeError: Cannot read property ‘expanded’ of undefined

Please help, I need to hide those sections for my client ASAP.

Thank you