Since Ministro no longer work on recent Android versions (Android 8+),
and it hasn't been maintained and the repos are not updated, the
existing code is practically a dead code.

[ChangeLog][Android] Remove ministro code since it's been unmaintained
and not working with recent Android versions.

Task-number: QTBUG-85201
Pick-to: 6.2
Change-Id: I18d7b1e209cba3cfd04674060e9bf39aa5a5510f
Reviewed-by: BogDan Vatra <bogdan@kdab.com>

Task-number: QTBUG-72895
Change-Id: Ia9f6d0809c1d8f408a0818367ceb96599c13cbca
Reviewed-by: BogDan Vatra <bogdan@kdab.com>
Reviewed-by: Sergey Belyashov <Sergey.Belyashov@gmail.com>
Reviewed-by: Takumi ASAKI <takumi.asaki@gmail.com>
Reviewed-by: Liang Qi <liang.qi@qt.io>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>

Starting with Qt 5.7 we removed support for API < 16 (Android v4.1)

[ChangeLog][Android] Support for Android API < 16 was removed.

Change-Id: I8bf396a9d70ab0996965e0c9f629800aa1fa6a45
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>

Based on the Necessitas project by Bogdan Vatra.
Contributors to the Qt5 project:

BogDan Vatra <bogdan@kde.org>
Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
hjk <hjk121@nokiamail.com>
Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Paul Olav Tvete <paul.tvete@digia.com>
Robin Burchell <robin+qt@viroteck.net>
Samuel Rødal <samuel.rodal@digia.com>
Yoann Lopes <yoann.lopes@digia.com>

The full history of the Qt5 port can be found in refs/old-heads/android,
SHA-1 249ca9ca2c7d876b91b31df9434dde47f9065d0d

Change-Id: Iff1a7b2dbb707c986f2639e65e39ed8f22430120
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>