macosx: Do not store loading overlay view property in playlist view controller

Signed-off-by: Claudio Cambra <developer@claudiocambra.com>

modules/gui/macosx/library/playlist-library/VLCLibraryPlaylistViewController.h

@@ -29,7 +29,6 @@
 NS_ASSUME_NONNULL_BEGIN
 
 @class VLCLibraryCollectionViewDelegate;
-@class VLCLoadingOverlayView;
 @class VLCLibraryMasterDetailViewTableViewDelegate;
 @class VLCLibraryPlaylistDataSource;
 @class VLCLibraryTableView;
@@ -44,7 +43,6 @@ NS_ASSUME_NONNULL_BEGIN
 @property (readonly) VLCLibraryTableView *detailTableView;
 @property (readonly) NSScrollView *collectionViewScrollView;
 @property (readonly) NSCollectionView *collectionView;
-@property (readonly, weak) VLCLoadingOverlayView *loadingOverlayView;
 
 @property (readonly) VLCLibraryPlaylistDataSource *dataSource;
 @property (readonly) VLCLibraryCollectionViewDelegate *collectionViewDelegate;

modules/gui/macosx/library/playlist-library/VLCLibraryPlaylistViewController.m

@@ -43,7 +43,6 @@
 
 #import "main/VLCMain.h"
 
-#import "views/VLCLoadingOverlayView.h"
 
 #import "windows/video/VLCMainVideoViewController.h"
 
@@ -61,7 +60,6 @@
 
     if (self) {
         _dataSource = [[VLCLibraryPlaylistDataSource alloc] init];
-        _loadingOverlayView = libraryWindow.loadingOverlayView;
 
         [self setupPlaylistCollectionView];
         [self setupPlaylistTableView];