VST2 & VST3: Plug-Ins will already be scaled on retina screens - don't try scaling them again

modules/juce_audio_plugin_client/VST/juce_VST_Wrapper.cpp

@@ -1049,7 +1049,10 @@ public:
             {
                 vstEffect.flags |= vstEffectFlagHasEditor;
                 editorComp = new EditorCompWrapper (*this, *ed);
+
+               #if ! (JUCE_MAC || JUCE_IOS)
                 ed->setScaleFactor (editorScaleFactor);
+               #endif
             }
             else
             {

modules/juce_audio_plugin_client/VST3/juce_VST3_Wrapper.cpp

@@ -866,11 +866,15 @@ private:
 
         tresult PLUGIN_API setContentScaleFactor (Steinberg::IPlugViewContentScaleSupport::ScaleFactor factor) override
         {
+           #if (JUCE_MAC || JUCE_IOS)
+            ignoreUnused (factor);
+           #else
             if (auto* editor = component->pluginEditor.get())
             {
                 editor->setScaleFactor (factor);
                 return kResultTrue;
             }
+           #endif
 
             return kResultFalse;
         }