Use simpler Plugin::initialize() when feasible

Change-Id: I567965d266f20526bda9f823e31a04b354d53fb1
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/android/androidplugin.h

@@ -15,7 +15,7 @@ class AndroidPlugin final : public ExtensionSystem::IPlugin
 
     ~AndroidPlugin() final;
 
-    bool initialize(const QStringList &arguments, QString *errorMessage) final;
+    void initialize() final;
 
     void kitsRestored();
     void askUserAboutAndroidSetup();