Removes the version of your css and javascript files to speed up performance

remove_script_version

/*
Put the following function in your functions.php file to remove the query strings from css and javascript files
*/
function prefix_remove_script_and_style_version( $src ){
	$ver = explode( '?ver', $src );
        return $ver[0];
}
add_filter( 'script_loader_src', 'prefix_remove_script_and_style_version', 15, 1 );
add_filter( 'style_loader_src', 'prefix_remove_script_and_style_version', 15, 1 );