WordPress .htaccess code for redirect www to non www url

<IfModule mod_rewrite.c>
	RewriteEngine On
	RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
	RewriteBase /
	RewriteRule ^index\.php$ - [L]
	RewriteCond %{REQUEST_FILENAME} !-f
	RewriteCond %{REQUEST_FILENAME} !-d
	RewriteRule . /index.php [L]
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
</IfModule>