Filter roles list in the Members plugin

editable_roles.php

<?php
/**
 * Filter the editable roles array for the current user
 *
 * This removes the permission for the user to edit certain roles, but still leaves the
 * affected roles visible on the Users > Roles screen
 * 
 * @link 	https://codex.wordpress.org/Plugin_API/Filter_Reference/editable_roles
 *
 * @param   	array 	$roles    Data about the current user's editable roles
 * @return 	array             The filtered $roles array
 */
add_filter( 'editable_roles', 'my_editable_roles' );
function my_editable_roles( $roles ) {
	
	$current_user = wp_get_current_user();

	# do nothing if current user is an administrator
	if( in_array( 'administrator', $current_user->roles ) ) {
		return $roles;
	}

	/**
	 * Loop through the editable roles and remove items as needed
	 * 
	 * The array keys are the role slugs, and the array values contain detailed 
	 * data about each role
	 */
	foreach( $roles as $role => $role_data ) {
		if( 'administrator' == $role ) {
			unset( $roles[ $role ] );
		}
	}

	return $roles;

} # end: my_editable_roles()

members\admin\class-role-list-table.php

<?php
/**
 * Below are the lines of code from the Members plugin that allow us to filter 
 * the list
 */

// Allow devs to filter the items.
$roles = apply_filters( 'members_manage_roles_items', $roles, $this->role_view );

Members_manage_roles_items.php

<?php
/**
 * Filter the roles table items on the Users > Roles screen
 * 
 * @param 	array		$roles		List of role "slugs" being shown in the table
 * @param 	string 		$role_view	View type for current screen (e.g. all, mine, active, etc)
 * 
 * @return array	The filtered $roles array
 */
add_filter( 'members_manage_roles_items', 'my_manage_roles_items', 10, 2 );
function my_manage_roles_items( $roles, $role_view ) {

	# get the logged-in user
	$current_user = wp_get_current_user();

	# do nothing if logged-in user is an administrator
	if( in_array( 'administrator', $current_user->roles ) ) {
		return $roles;
	}

	# loop through roles and remove the administrator role
	foreach( $roles as $k => $role ) {

		if( 'administrator' == $role ) {
			unset( $roles[ $k ] );
		}
	}

	return $roles;

} # end: my_manage_roles_items()