Doc: Drop platform/API version in introduction paragraph

The platform/API version is maintained in the table that follows
immediately after the introduction paragraph.

Fixes: QTBUG-78489
Change-Id: Ib22e77519973b87b9462ac5940bc5d2250398b47
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>

doc/src/platforms/android.qdoc

 /****************************************************************************
 **
-** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2019 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the documentation of the Qt Toolkit.
@@ -31,12 +31,12 @@
 \brief Provides information about Android support in Qt.
 \ingroup supportedplatform
 
-Qt for Android enables you to run Qt 5 applications on devices with Android
-v4.1 (API level 16) or later. All Qt modules (essential and add-on) are
-supported except Qt \WebEngine, Qt Serial Port, and the
-platform-specific ones (Qt Mac Extras, Qt Windows Extras, and Qt X11 Extras).
+Qt for Android enables you to run Qt 5 applications Android devices.
+All Qt modules (essential and add-on) are supported except Qt \WebEngine,
+Qt Serial Port, and the platform-specific ones (Qt Mac Extras,
+Qt Windows Extras, and Qt X11 Extras).
 
-The following configurations are supported.
+The following configurations are supported:
 
 \include supported-platforms.qdocinc android