To remove Additional and Review Tab, you can activate the child theme, then open functions.php and add the code below 


function woo1_remove_product_tabs( $tabs ) {

    unset( $tabs['additional_information'] );

    unset( $tabs[‘reviews’] ); 

    return $tabs;

}

add_filter( 'woocommerce_product_tabs', 'woo1_remove_product_tabs', 98 );