If you make a child theme, then copy the header.php file over.
Edit the header file and look for <button> tag there is 2 spots for it.
Or use this header.php, I’ve removed that from my site that’s only modification to file.
Make sure to create a child theme so it won’t be overwrote from theme updates
<?php
/**
* The header for our theme.
*
* Displays all of the <head> section and everything up till <div id="content">
*
* @package modulus
*/
?><!DOCTYPE html>
<html <?php language_attributes(); ?>>
<head>
<meta charset="<?php bloginfo( 'charset' ); ?>">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="profile" href="https://gmpg.org/xfn/11">
<link rel="pingback" href="<?php bloginfo( 'pingback_url' ); ?>">
<?php wp_head(); ?>
</head>
<body <?php body_class(); ?>>
<div id="page" class="hfeed site">
<a class="skip-link screen-reader-text" href="#content"><?php _e( 'Skip to content', 'modulus' ); ?></a>
<?php do_action('modulus_before_header'); ?>
<header id="masthead" class="site-header" role="banner">
<?php if( is_active_sidebar( 'top-left' ) || is_active_sidebar( 'top-right' ) ): ?>
<div class="top-nav">
<div class="container">
<div class="eight columns">
<div class="cart-left">
<?php dynamic_sidebar('top-left' ); ?>
</div>
</div>
<div class="eight columns">
<div class="cart-right">
<?php dynamic_sidebar('top-right' ); ?>
</div>
</div>
</div>
</div> <!-- .top-nav -->
<?php endif;?>
<div class="branding">
<div class="container">
<div class="eight columns">
<div class="site-branding">
<?php
$logo_title = get_theme_mod( 'logo_title' );
$logo = get_theme_mod( 'logo', '' );
$tagline = get_theme_mod( 'tagline',true);
if( $logo_title && $logo != '' ) : ?>
<h1 class="site-title"><a href="<?php echo esc_url( home_url( '/' ) ); ?>" rel="home"><img src="<?php echo esc_url($logo) ?>"></a></h1>
<?php else : ?>
<h1 class="site-title"><a href="<?php echo esc_url( home_url( '/' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?></a></h1>
<?php endif; ?>
<?php if( $tagline ) : ?>
<h2 class="site-description"><?php bloginfo( 'description' ); ?></h2>
<?php endif; ?>
</div><!-- .site-branding -->
</div>
<?php if( is_active_sidebar('header-right' ) ) : ?>
<div class="eight columns">
<div class="top-right">
<?php dynamic_sidebar( 'header-right' ); ?>
</div>
</div>
<?php endif;?>
</div>
</div>
<div class="nav-wrap">
<div class="container">
<?php if ( get_theme_mod ('header_search',true) ){ ?>
<div class="twelve columns">
<nav id="site-navigation" class="main-navigation clearfix" role="navigation">
<?php wp_nav_menu( array( 'theme_location' => 'primary', ) ); ?>
</nav><!-- #site-navigation -->
</div>
<div class="four columns">
<?php get_search_form(); ?>
</div>
<?php } else { ?>
<div class="sixteen columns">
<nav id="site-navigation" class="main-navigation clearfix" role="navigation">
<?php wp_nav_menu( array( 'theme_location' => 'primary', ) ); ?>
</nav><!-- #site-navigation -->
</div>
<?php } ?>
</div>
</div>
</header><!-- #masthead -->
<?php if ( function_exists( 'is_woocommerce' ) || function_exists( 'is_cart' ) || function_exists( 'is_chechout' ) ) :
if ( is_woocommerce() || is_cart() || is_checkout() ) { ?>
<?php $breadcrumb = get_theme_mod( 'breadcrumb',true ); ?>
<div class="breadcrumb">
<div class="container">
<div class="breadcrumb-left eight columns">
<h4><?php woocommerce_page_title(); ?></h4>
</div>
<?php if( $breadcrumb ) : ?>
<div class="breadcrumb-right eight columns">
<?php woocommerce_breadcrumb(); ?>
</div>
<?php endif; ?>
</div>
</div>
<?php }
endif; ?>
