Qt: remove unneeded code

modules/gui/qt4/components/playlist/playlist_item.cpp

@@ -73,15 +73,12 @@ PLItem::~PLItem()
     children.clear();
 }
 
-/* So far signal is always true.
-   Using signal false would not call PLModel... Why ?
- */
-void PLItem::insertChild( PLItem *item, int i_pos, bool signal )
+void PLItem::insertChild( PLItem *item, int i_pos )
 {
     children.insert( i_pos, item );
 }
 
-void PLItem::appendChild( PLItem *item, bool signal )
+void PLItem::appendChild( PLItem *item )
 {
     children.insert( children.count(), item );
 }

modules/gui/qt4/components/playlist/playlist_item.hpp

@@ -39,8 +39,8 @@ public:
 
     int row() const;
 
-    void insertChild( PLItem *, int pos, bool signal = true );
-    void appendChild( PLItem *item, bool signal = true );
+    void insertChild( PLItem *, int pos );
+    void appendChild( PLItem *item );
     void removeChild( PLItem * );
     void removeChildren();
     void takeChildAt( int );

modules/gui/qt4/main_interface_win32.cpp

@@ -87,12 +87,12 @@ void MainInterface::createTaskBarButtons()
     {
         p_taskbl->vt->HrInit(p_taskbl);
 
-        if(himl = ImageList_Create( 20, //cx
+        if( (himl = ImageList_Create( 20, //cx
                         20, //cy
                         ILC_COLOR32,//flags
                         4,//initial nb of images
                         0//nb of images that can be added
-                        ))
+                        ) ) != NULL )
         {
             QPixmap img   = QPixmap(":/win7/prev");
             QPixmap img2  = QPixmap(":/win7/pause");