QCommonStyle: use RSIP_OnMouseClick for SH_RequestSoftwareInputPanel

Both Android and iOS needs the style to use RSIP_OnMouseClick (and
qwindowscestyle and qwindowsmobilstyle as well, it seems) so set it
as default (instead of expanding the #if test even more).

Change-Id: I93a78e11031b506c2cb80f30f1946fe25f7945a9
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>

src/widgets/styles/qcommonstyle.cpp

@@ -5097,11 +5097,7 @@ int QCommonStyle::styleHint(StyleHint sh, const QStyleOption *opt, const QWidget
             ret = theme->themeHint(QPlatformTheme::ToolButtonStyle).toInt();
         break;
     case SH_RequestSoftwareInputPanel:
-#ifdef Q_OS_ANDROID
         ret = RSIP_OnMouseClick;
-#else
-        ret = RSIP_OnMouseClickAndAlreadyFocused;
-#endif
         break;
     case SH_ScrollBar_Transient:
         ret = false;