[docs] remove blog article about searx-admin

- https://github.com/kvch/searx-admin last maintained 4 years ago
- searx-admin does not support 'use_default_settings' [1] (b4b81a5e)

[1] https://searxng.github.io/searxng/admin/settings.html#use-default-settings

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

docs/blog/admin.rst

@@ -1,43 +0,0 @@
-=============================================================
-Searx admin interface
-=============================================================
-
-.. _searx-admin: https://github.com/kvch/searx-admin#searx-admin
-.. _NLnet Foundation: https://nlnet.nl/
-
-  manage your instance from your browser
-
-.. sidebar:: Installation
-
-   Installation guide can be found in the repository of searx-admin_.
-
-One of the biggest advantages of searx is being extremely customizable. But at
-first it can be daunting to newcomers.  A barrier of taking advantage of this
-feature is our ugly settings file which is sometimes hard to understand and
-edit.
-
-To make self-hosting searx more accessible a new tool is introduced, called
-``searx-admin``.  It is a web application which is capable of managing your
-instance and manipulating its settings via a web UI.  It aims to replace editing
-of ``settings.yml`` for less experienced administrators or people who prefer
-graphical admin interfaces.
-
-.. figure:: searx-admin-engines.png
-   :alt: Screenshot of engine list
-
-   Configuration page of engines
-
-Since ``searx-admin`` acts as a supervisor for searx, we have decided to
-implement it as a standalone tool instead of part of searx.  Another reason for
-making it a standalone tool is that the codebase and dependencies of searx
-should not grow because of a fully optional feature, which does not affect
-existing instances.
-
-
-Acknowledgements
-================
-
-This development was sponsored by `NLnet Foundation`_.
-
-| Happy hacking.
-| kvch // 2017.08.22 21:25

docs/blog/index.rst

@@ -8,7 +8,6 @@ Blog
 
    lxcdev-202006
    python3
-   admin
    intro-offline
    private-engines
    command-line-engines