SAML Service Provider Metadata link should be hidden if SSPHP is not installed

[Dmitrii Metelkin]

Not a huge thing, but it will make a page a little bit cleaner.

If on the page /admin/extensions/pluginconfig.php?plugintype=auth&pluginname=saml we see message like

The SimpleSAMLPHP library's "autoloader" file was not found at /var/www/site/auth/saml/extlib/simplesamlphp/vendor/autoload.php.
Make sure you install SimpleSAMLphp via "make ssphp" and the file is readable.

we probably need to get rid of Metadata link which doesn't work anyway in this case and just displays a broken page.

[Mahara Bot (dev-mahara)]

Patch for "master" branch: https://reviews.mahara.org/8162

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/8162
Committed: https://git.mahara.org/mahara/mahara/commit/9c40678109a360724d81b4eae275d2a1d2a32d8c
Submitter: Robert Lyon (<email address hidden>)
Branch: master

commit 9c40678109a360724d81b4eae275d2a1d2a32d8c
Author: Dmitrii Metelkin <email address hidden>
Date: Thu Oct 19 14:36:32 2017 +1100

Bug 1715544: hide metadata link when SSPHP is not configured

behatnotneeded

Change-Id: I24895a80f49820212e3708592a4cd4638a8fe2d8

[Mahara Bot (dev-mahara)]

Patch for "17.10_STABLE" branch: https://reviews.mahara.org/8178

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/8178
Committed: https://git.mahara.org/mahara/mahara/commit/00dd3a0093265a051a54999377f569191dc8f525
Submitter: Robert Lyon (<email address hidden>)
Branch: 17.10_STABLE

commit 00dd3a0093265a051a54999377f569191dc8f525
Author: Dmitrii Metelkin <email address hidden>
Date: Thu Oct 19 14:36:32 2017 +1100

Bug 1715544: hide metadata link when SSPHP is not configured

behatnotneeded

Change-Id: I24895a80f49820212e3708592a4cd4638a8fe2d8
(cherry picked from commit 9c40678109a360724d81b4eae275d2a1d2a32d8c)