Android: Use new setup for more plugin items

Change-Id: Id5ff09813ab7b4be425d007abd4cc04d9c9472c1
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>

src/plugins/android/javaeditor.h

@@ -3,14 +3,8 @@
 
 #pragma once
 
-#include <texteditor/texteditor.h>
-
 namespace Android::Internal {
 
-class JavaEditorFactory : public TextEditor::TextEditorFactory
-{
-public:
-    JavaEditorFactory();
-};
+void setupJavaEditor();
 
 } // Android::Internal