macosx: remove old playlist data source, remove unneeded outline view inits

extras/package/macosx/Resources/English.lproj/MainWindow.xib

@@ -21,12 +21,12 @@
     </object>
     <object class="NSMutableArray" key="IBDocument.EditedObjectIDs">
       <bool key="EncodedWithXMLCoder">YES</bool>
-      <integer value="5305"/>
       <integer value="5605"/>
-      <integer value="4756"/>
       <integer value="5265"/>
-      <integer value="5260"/>
+      <integer value="21"/>
       <integer value="4850"/>
+      <integer value="5260"/>
+      <integer value="5305"/>
     </object>
     <object class="NSArray" key="IBDocument.PluginDependencies">
       <bool key="EncodedWithXMLCoder">YES</bool>
@@ -2462,14 +2462,6 @@
           </object>
           <int key="connectionID">5412</int>
         </object>
-        <object class="IBConnectionRecord">
-          <object class="IBOutletConnection" key="connection">
-            <string key="label">dataSource</string>
-            <reference key="source" ref="23448837"/>
-            <reference key="destination" ref="998338913"/>
-          </object>
-          <int key="connectionID">5599</int>
-        </object>
         <object class="IBConnectionRecord">
           <object class="IBOutletConnection" key="connection">
             <string key="label">delegate</string>

modules/gui/macosx/playlist.m

@@ -228,10 +228,6 @@
         return;
 
     playlist_t * p_playlist = pl_Get(VLCIntf);
-    [o_outline_view setTarget: self];
-    [o_outline_view setDelegate: self];
-    [o_outline_view setAllowsEmptySelection: NO];
-    [o_outline_view expandItem: [o_outline_view itemAtRow:0]];
 
     [self reloadStyles];
     [self initStrings];
@@ -240,8 +236,10 @@
     [o_outline_view setDataSource:o_model];
     [o_outline_view reloadData];
 
+    [o_outline_view setTarget: self];
     [o_outline_view setDoubleAction: @selector(playItem:)];
 
+    [o_outline_view setAllowsEmptySelection: NO];
     [o_outline_view registerForDraggedTypes: [NSArray arrayWithObjects:NSFilenamesPboardType, @"VLCPlaylistItemPboardType", nil]];
     [o_outline_view setIntercellSpacing: NSMakeSize (0.0, 1.0)];