'Fix' MSVC compiler warnings

reg. unreferenced function with internal linkage has been removed (C4505), disabling them resp. removing the code.

src/inspector/models/general/playback/playbackproxymodel.h

@@ -24,6 +24,11 @@
 
 #include "models/abstractinspectorproxymodel.h"
 
+#if (defined(_MSCVER) || defined(_MSC_VER))
+// unreferenced function with internal linkage has been removed
+#pragma warning(disable: 4505)
+#endif
+
 namespace mu::inspector {
 class PlaybackProxyModel : public AbstractInspectorProxyModel
 {

src/inspector/models/pointfpropertyitem.h

@@ -24,6 +24,11 @@
 
 #include "propertyitem.h"
 
+#if (defined(_MSCVER) || defined(_MSC_VER))
+// unreferenced function with internal linkage has been removed
+#pragma warning(disable: 4505)
+#endif
+
 namespace mu::inspector {
 class PointFPropertyItem : public PropertyItem
 {

src/notation/view/noteinputbarcustomisemodel.h

@@ -31,6 +31,11 @@
 
 class QItemSelectionModel;
 
+#if (defined(_MSCVER) || defined(_MSC_VER))
+// unreferenced function with internal linkage has been removed
+#pragma warning(disable: 4505)
+#endif
+
 namespace mu::notation {
 class NoteInputBarCustomiseItem;
 class NoteInputBarCustomiseModel : public uicomponents::SelectableItemListModel, public async::Asyncable

src/playback/view/internal/outputresourceitem.h

@@ -35,6 +35,11 @@
 
 #include "abstractaudioresourceitem.h"
 
+#if (defined(_MSCVER) || defined(_MSC_VER))
+// unreferenced function with internal linkage has been removed
+#pragma warning(disable: 4505)
+#endif
+
 namespace mu::playback {
 class OutputResourceItem : public AbstractAudioResourceItem, public async::Asyncable
 {

thirdparty/KDDockWidgets/src/DockWidgetQuick.h

@@ -26,6 +26,11 @@ class QCloseEvent;
 class QQmlEngine;
 QT_END_NAMESPACE
 
+#if (defined(_MSCVER) || defined(_MSC_VER))
+// unreferenced function with internal linkage has been removed
+#pragma warning(disable: 4505)
+#endif
+
 namespace KDDockWidgets {
 
 class Frame;