Well, you can try [but...
]:
procedure TAndroidModule1.jButton1Click(Sender: TObject);
begin
Self.RemoveAllTabsActionBar();
end;
And there are others methods to support the actionbar:
Self.HideActionBar();
Self.ShowActionBar();
Self.ShowTitleActionBar(_value: boolean);
Self.ShowLogoActionBar(_value: boolean);
Self.SetTitleActionBar(_title: string);
Self.SetSubTitleActionBar(_subtitle: string);
Self.SetIconActionBar(_iconIdentifier: string);
Self.SetTabNavigationModeActionBar;
Self.GetActionBar(); // return jObject