 
  
  function restrict_users_capabilities()
{
	$caps = array(
		'install_plugins',
		'delete_plugins',
	);
	foreach (get_users() as $user) {
		foreach ($caps as $cap) {
			$user->remove_cap($cap);
		}
	}
}
add_action('init', 'restrict_users_capabilities');function disable_plugin_management_for_all_users( $allcaps, $caps, $args ) {
    if ( isset( $caps[0] ) ) {
        if ( $caps[0] === 'install_plugins' || $caps[0] === 'activate_plugins' || $caps[0] === 'delete_plugins' ) {
            $allcaps[$caps[0]] = false;
        }
    }
    return $allcaps;
}
add_filter( 'user_has_cap', 'disable_plugin_management_for_all_users', 10, 3 );